Best Portable External SSDs 2026: 14 Compared (11 Sources)
What are the best portable external SSDs in 2026?
TL;DR
Top pick: Corsair EX400U Survivor ($259.99/1TB, $260/TB) — USB4 4,000 MB/s plus IP55 ruggedness, and now half the price of the plain EX400U.
Best value: Addlink P30 ($174.44/1TB, $174/TB) — the cheapest USB4 drive on Amazon.
Best budget: TEAMGROUP X2 MAX ($129.99/1TB, $130/TB) — lowest cost of entry in the shortage. [src1, src2, src5, src8]
Summary
The portable external SSD market in mid-2026 is defined by USB4 performance and a NAND flash shortage severe enough that which drive is the best buy now changes with stock levels, not just with specs. NAND contract prices rose 55-60% quarter-over-quarter in Q1 2026 and a further 70-75% in Q2, and Kingston has publicly warned buyers not to wait. Because capacity is the SKU and price is not linear in capacity, every row below states the capacity it prices and the resulting cost per terabyte. [src7, src11]
The single biggest change since the last verification is a price inversion inside Corsair's own line: the rugged Corsair EX400U Survivor now sells for $259.99 at 1TB while the plain Corsair EX400U sits at $529.00 at 1TB — the same Phison USB4 controller and KIOXIA TLC NAND, the same 4,000/3,600 MB/s peak, plus IP55 water and dust resistance, for less than half the money. The Survivor is therefore the top pick outright, and the standard EX400U is impossible to recommend at its current Amazon price. [src1, src2, src5] For the lowest USB4 entry price, the Addlink P30 is still the value leader at $174.44/1TB, though sustained writes drop to around 800 MB/s once the SLC cache is exhausted. [src2, src5, src8]
Value at the bottom of the market has also shifted. The TEAMGROUP X2 MAX ($129.99/1TB, $130/TB) is now the cheapest sensible drive, and the PNY RP60 ($151.19/1TB, $151/TB) is both the cheapest 20Gbps drive and the cheapest IP65-rated one — PCWorld's rugged pick. At 2TB, the Crucial X10 Pro ($363.74, $182/TB) is the cost-per-terabyte leader. Conversely, the LaCie Rugged SSD4 has climbed to $549.00 at 1TB ($549/TB) and is no longer the value Mac recommendation it was in June. [src2, src4, src8]
Stockouts are now a first-class buying fact. On 2026-08-05 three product lines were unbuyable on Amazon US at every capacity: the Lexar SL600 (replaced in this card by the in-stock, IP66-rated Lexar Armor 700), the LaCie Rugged SSD Pro5 (replaced by the in-stock OWC Envoy Ultra 2TB Thunderbolt 5 drive at $699.99), and the SanDisk Extreme Pro USB4, whose listing remains live but cannot be purchased. Buy when you see stock; relief on pricing is not expected before late 2027. [src3, src7, src9, src10, src11]
Top 14 Models Compared
| Model | Capacity priced | Price | $/TB | Peak read / write | Interface | Durability | Best For | Buy |
|---|---|---|---|---|---|---|---|---|
| Corsair EX400U Survivor | 1TB | $259.99 | $260/TB | 4,000 / 3,600 MB/s | USB4 (40Gbps) | IP55, rubber shell, MagSafe | Best Overall | Check price |
| Addlink P30 | 1TB | $174.44 | $174/TB | 4,000 / 3,600 MB/s | USB4 (40Gbps) | Aluminum, MagSafe | Best USB4 Value | Check price |
| TeamGroup X2 Max | 1TB | $129.99 | $130/TB | 1,000 / 900 MB/s | USB 3.2 Gen 2 | Aluminum, Type-A+C | Best Budget | Check price |
| PNY RP60 | 1TB | $151.19 | $151/TB | 2,000 / 1,800 MB/s | USB 3.2 Gen 2x2 | IP65, 3m drop | Best Rugged Value | Check price |
| Crucial X10 Pro | 2TB | $363.74 | $182/TB | 2,100 / 2,000 MB/s | USB 3.2 Gen 2x2 | IP55, drop-proof | Best $/TB at 2TB | Check price |
| ADATA SE920 | 2TB | $399.99 | $200/TB | 3,800 / 3,700 MB/s | USB4 (40Gbps) | Aluminum, active fan | Best Sustained USB4 Speed | Check price |
| Lexar Armor 700 | 1TB | $209.99 | $210/TB | 2,000 / 2,000 MB/s | USB 3.2 Gen 2x2 | IP66, 3m drop, silicone shell | Best IP66 Rugged | Check price |
| Crucial X9 Pro | 1TB | $229.99 | $230/TB | 1,050 / 1,050 MB/s | USB 3.2 Gen 2 | IP55, drop-proof | Best Compact 10Gbps | Check price |
| Samsung T9 | 1TB | $234.70 | $235/TB | 2,000 / 2,000 MB/s | USB 3.2 Gen 2x2 | Rubber armor, 3m drop | Best 20Gbps Rugged | Check price |
| Samsung T7 Shield | 2TB | $471.40 | $236/TB | 1,050 / 1,000 MB/s | USB 3.2 Gen 2 | IP65, 2m drop | Best Rugged 2TB Backup | Check price |
| SanDisk Extreme Pro USB4 | 2TB | $529.00 (last verified 2026-06-30; out of stock) | $265/TB | 3,800 / 3,700 MB/s | USB4 (40Gbps) | IP65, aluminum + silicone | Rugged USB4 at 2TB (when in stock) | Check price |
| OWC Envoy Ultra | 2TB | $699.99 | $350/TB | 6,000 / 5,000 MB/s | Thunderbolt 5 | Sealed weatherproof housing | Best for Pros (TB5) | Check price |
| Corsair EX400U | 1TB | $529.00 | $529/TB | 4,000 / 3,600 MB/s | USB4 (40Gbps) | Aluminum heatsink, MagSafe | Overpriced vs the Survivor | Check price |
| LaCie Rugged SSD4 | 1TB | $549.00 | $549/TB | 4,000 / 3,800 MB/s | USB4 (40Gbps) | IP54, 3m drop, 1-ton crush | Rugged Mac USB4 (premium) | Check price |
Best for Each Use Case
Best Overall: Corsair EX400U Survivor ($259.99/1TB, $260/TB) — Check price
The Survivor wraps the same Phison PS2251-21 USB4 controller and KIOXIA TLC NAND as the standard EX400U in a rubberized, IP55-rated chassis, delivering the same 4,000/3,600 MB/s peak and ~1,700 MB/s sustained writes while adding water and dust resistance and keeping the MagSafe-compatible magnetic mount. It is the top pick for one blunt reason: at $259.99 for 1TB it costs less than half the plain EX400U's current $529.00, so the rugged version is now the cheap version. Also sold at 2TB (~$429.99, ~$215/TB) and 4TB. [src1, src2, src5]
Best USB4 Value: Addlink P30 ($174.44/1TB, $174/TB) — Check price
The Addlink P30 is the cheapest way onto USB4 on Amazon US. At $174.44 for 1TB it delivers up to 4,000/3,600 MB/s peak read/write in a credit-card-sized aluminum body weighing just 1.9 ounces, with MagSafe compatibility and iPhone ProRes recording support. PCWorld called it "astoundingly affordable for USB4" but measured sustained writes dropping to around 800 MB/s — fine for everyday transfers, not for repeated 50GB+ copies. Available in 1TB and 2TB. [src2, src5, src8]
Best Budget: TEAMGROUP X2 MAX ($129.99/1TB, $130/TB) — Check price
At $129.99 for 1TB the X2 MAX is the lowest cost of entry among drives worth owning, and the only pick here with both USB-C and USB-A connectors built into the body — a genuine thumb-drive replacement rather than a drive plus a cable. PCWorld rates it the best thumb-drive-style SSD and an excellent 10Gbps performer at 1,000/900 MB/s. If your host only has USB 3.2 Gen 2 ports, nothing faster will help you anyway. [src2, src8]
Best Rugged Value: PNY RP60 ($151.19/1TB, $151/TB) — Check price
The PNY RP60 has become the best-value drive on this card that is both fast and rugged: IP65 water and dust resistance (jet-proof, not just splash-proof), 3-meter drop protection, and 2,000/1,800 MB/s via USB 3.2 Gen 2x2 for $151.19 at 1TB. PCWorld awarded it Editors' Choice as its best 20Gbps pick, noting it bested some faster drives in real-world tests, and it includes Acronis True Image backup software. Available in 1TB and 2TB. [src2, src4, src5]
Best Cost-per-TB at 2TB: Crucial X10 Pro ($363.74/2TB, $182/TB) — Check price
If you need 2TB rather than 1TB, the X10 Pro is the cheapest sane way to get there at $363.74 ($182/TB), and it is quick: 2,100/2,000 MB/s over USB 3.2 Gen 2x2 in one of the smallest enclosures on the market, with IP55 protection and drop resistance. Note the 4TB SKU was unavailable on Amazon US on 2026-08-05, which is why this row prices the 2TB. [src1, src2, src8]
Best Sustained USB4 Speed: ADATA SE920 ($399.99/2TB, $200/TB) — Check price
The SE920 stands out among USB4 drives for sustained write performance thanks to a built-in micro fan activated by pressing down on the case. That active cooling prevents thermal throttling on long transfers, holding near-peak 3,800/3,700 MB/s even during 200GB+ copies — PCWorld calls it the fastest pre-populated 40Gbps SSD it has tested. It is the drive to buy if you regularly move very large files rather than many small ones. Backed by a five-year warranty; this row prices the in-stock 2TB SKU. [src1, src2, src6]
Best IP66 Rugged: Lexar Armor 700 ($209.99/1TB, $210/TB) — Check price
The Armor 700 replaces the Lexar SL600 in this card because the SL600 is out of stock at every capacity on Amazon US. It is a better field drive anyway: an aluminum core under a silicone jacket, IP66 (complete dust protection plus high-pressure water jets) and 3-metre drop resistance — one of the highest ratings in its class — with 2,000/2,000 MB/s over USB 3.2 Gen 2x2 and Apple ProRes capture support. PCWorld found it fast and "impervious to elements," while noting it is priced above equally capable but less rugged rivals. Available at 1TB ($209.99) and 2TB (~$349.99, ~$175/TB). [src2, src9]
Best Compact 10Gbps: Crucial X9 Pro ($229.99/1TB, $230/TB) — Check price
For users who do not have a 20Gbps or USB4 port, the X9 Pro delivers a full 1,050/1,050 MB/s over USB 3.2 Gen 2 — the practical ceiling of that interface — in an extremely compact IP55-rated aluminum body. It works across PC, Mac, PlayStation, Xbox and Android and remains a sensible general-purpose backup and transfer drive. Note that shortage pricing has pushed it to $229.99 at 1TB, so check the TEAMGROUP X2 MAX first if cost per terabyte is the deciding factor. [src1, src2, src8]
Best 20Gbps Rugged: Samsung T9 ($234.70/1TB, $235/TB) — Check price
The T9 pairs 2,000/2,000 MB/s USB 3.2 Gen 2x2 speeds with a grippy rubber-armour shell rated for 3-metre drops, plus Samsung's hardware AES-256 encryption and Magician management software. It is the safe, well-supported choice at 20Gbps if you want a large brand's firmware and warranty support behind the drive rather than the lowest price. Available in 1TB, 2TB (~$417) and 4TB. [src1, src2, src6]
Best Rugged 2TB Backup: Samsung T7 Shield ($471.40/2TB, $236/TB) — Check price
The T7 Shield is the long-standing rugged 10Gbps workhorse: IP65 dust and water resistance, 2-metre drop protection, a rubberised body that resists fingerprints, and steady 1,050/1,000 MB/s transfers. At 2TB for $471.40 it is not cheap in absolute terms, but $236/TB is competitive against every 2TB rugged rival here, and its firmware maturity is a real advantage for archive duty. [src1, src2, src4]
Best for Creative Professionals (Thunderbolt 5): OWC Envoy Ultra ($699.99/2TB, $350/TB) — Check price
With the LaCie Rugged SSD Pro5 out of stock at both capacities, the OWC Envoy Ultra is the Thunderbolt 5 drive you can actually buy. Macworld measured roughly 6GB/s reads and 5GB/s writes on an M4 Pro Mac from its sealed, weatherproof, captive-cable housing; sustained writes settle to about 1,350 MB/s at 2TB (about 1,700 MB/s at 4TB) once the cache fills, which is still enough for multi-stream 4K and most 8K timelines. The catch is the same as for every TB5 drive: you need a Thunderbolt 5 host (M4 Pro/Max or newer, or a TB5 PC) or it falls back to USB4/TB4 speeds. [src3, src10]
Best for Mac: Corsair EX400U Survivor ($259.99/1TB) — Check price
On Apple silicon the Survivor negotiates full USB4 speeds natively over the Mac's Thunderbolt ports, mounts without drivers, and its magnetic mount snaps to a MagSafe iPhone for ProRes capture. It has taken over the Mac recommendation from the LaCie Rugged SSD4, which is still an excellent drive — 4,000/3,800 MB/s with sustained writes never below 1,650 MB/s, IP54, 3-metre drop and 1-ton crush resistance, plus Rescue Data Recovery — but now costs $549.00 at 1TB, more than twice the Survivor, so buy the LaCie only if you specifically need its crush rating and recovery service. For a TB5 Mac, step up to the OWC Envoy Ultra. [src2, src3, src10]
Head-to-Head Comparisons
Corsair EX400U Survivor vs Corsair EX400U
Same controller, same NAND, same 4,000/3,600 MB/s peak and ~1,700 MB/s sustained writes. The Survivor adds an IP55 rubberised shell — and currently costs $259.99/1TB against $529.00/1TB for the plain model. This is a pricing artefact of the shortage rather than a product difference, but it is real today. [src1, src5]
Pick Corsair EX400U Survivor if: You are buying either drive right now — it is cheaper and tougher.
Pick Corsair EX400U if: Its price falls back below the Survivor's and you prefer the bare aluminium body.
Corsair EX400U Survivor vs Addlink P30
Both are USB4 drives with 4,000/3,600 MB/s peak speeds and MagSafe mounts. The P30 costs $174.44/1TB against $259.99/1TB for the Survivor, but drops to roughly 800 MB/s on sustained writes where the Survivor holds about 1,700 MB/s, and it has no IP rating. [src1, src2, src5]
Pick Corsair EX400U Survivor if: You move files larger than 50GB, or the drive lives in a bag rather than a desk drawer.
Pick Addlink P30 if: You want USB4 peak speeds for everyday transfers at the lowest possible price.
Crucial X10 Pro vs ADATA SE920 (both priced at 2TB)
Two ways to spend about $400 on 2TB. The X10 Pro is $363.74 ($182/TB) and does 2,100/2,000 MB/s over 20Gbps in a tiny IP55 body; the SE920 is $399.99 ($200/TB) and does 3,800/3,700 MB/s over USB4, holding near-peak speed on long copies thanks to its pop-up fan. The SE920 is also considerably bigger and heavier. [src1, src2, src6]
Pick Crucial X10 Pro if: Your host has no USB4 port, or pocketability and $/TB matter more than peak speed.
Pick ADATA SE920 if: You have USB4 and routinely copy 100GB+ at a time.
PNY RP60 vs Lexar Armor 700
Both are 20Gbps rugged drives at 2,000 MB/s class speeds. The RP60 is $151.19/1TB with IP65 and 3-metre drop protection; the Armor 700 is $209.99/1TB with a higher IP66 rating, the same drop rating, and a silicone-over-aluminium shell that runs cooler under load. [src2, src9]
Pick PNY RP60 if: You want the cheapest genuinely rugged 20Gbps drive — it is $59 less per terabyte.
Pick Lexar Armor 700 if: The drive will meet pressurised water or grit, or you want the 2TB SKU at ~$175/TB.
OWC Envoy Ultra vs LaCie Rugged SSD4
The Thunderbolt 5 question. The Envoy Ultra reads at roughly 6,000 MB/s on a TB5 Mac for $699.99/2TB ($350/TB); the LaCie SSD4 tops out at 4,000/3,800 MB/s over USB4 and now costs $549.00 for just 1TB ($549/TB), though it adds IP54, a 3-metre drop rating and 1-ton crush resistance. [src2, src3, src10]
Pick OWC Envoy Ultra if: You have an M4 Pro/Max or TB5 PC and edit multi-stream 4K/8K — it is both faster and cheaper per terabyte.
Pick LaCie Rugged SSD4 if: You need the crush rating and Rescue Data Recovery service and only need 1TB.
Decision Logic
If budget is under $150
→ TEAMGROUP X2 MAX ($129.99/1TB, $130/TB). It is the only drive on this card under $150 and the cheapest per terabyte, with 1,000/900 MB/s over USB 3.2 Gen 2 and both USB-C and USB-A plugs built in. Under 2026 shortage pricing there is no rugged or 20Gbps option at this budget — if you need either, plan on $151+ for the PNY RP60. [src2, src8, src11]
If budget is $150-$250
→ Addlink P30 ($174.44/1TB) if the host has USB4, otherwise PNY RP60 ($151.19/1TB, IP65) for the best rugged 20Gbps value. Also in band: Lexar Armor 700 ($209.99/1TB, IP66), Crucial X9 Pro ($229.99/1TB, compact 10Gbps) and Samsung T9 ($234.70/1TB, 20Gbps rugged). Prefer the P30 for peak speed, the RP60 for durability per dollar. [src2, src5, src8, src9]
If budget is $250-$400
→ Corsair EX400U Survivor ($259.99/1TB, $260/TB) is the outright best buy: USB4 4,000/3,600 MB/s, ~1,700 MB/s sustained writes and IP55. If you need 2TB rather than speed, take the Crucial X10 Pro ($363.74/2TB, $182/TB) or the ADATA SE920 ($399.99/2TB, $200/TB) for the best sustained USB4 throughput. [src1, src2, src5, src6]
If budget is over $400
→ OWC Envoy Ultra ($699.99/2TB, $350/TB) on a Thunderbolt 5 host, or Samsung T7 Shield ($471.40/2TB, $236/TB) for rugged bulk backup. Avoid the Corsair EX400U ($529.00/1TB) and LaCie Rugged SSD4 ($549.00/1TB) at current pricing unless you specifically need the LaCie's 1-ton crush rating and data-recovery service — the Corsair EX400U Survivor gives the same USB4 performance for half the money. [src1, src2, src3, src10]
If the user needs maximum speed regardless of price
→ OWC Envoy Ultra ($699.99/2TB) over Thunderbolt 5: roughly 6,000 MB/s read and 5,000 MB/s write on an M4 Pro/Max Mac, settling to ~1,350 MB/s sustained writes at 2TB. Requires a TB5 host; on TB4/USB4 it falls back to about 3,000-4,000 MB/s. Without TB5, the ADATA SE920 ($399.99/2TB) holds near-peak 3,800/3,700 MB/s thanks to active fan cooling. [src1, src3, src10]
If the user primarily needs ruggedness for field work
→ Corsair EX400U Survivor ($259.99/1TB, IP55) for USB4 speed with protection, Lexar Armor 700 ($209.99/1TB, IP66, 3m drop) for the highest ingress rating here, PNY RP60 ($151.19/1TB, IP65, 3m drop) for the cheapest jet-proof option, or LaCie Rugged SSD4 ($549.00/1TB, IP54, 3m drop, 1-ton crush) if crush resistance and Rescue Data Recovery matter more than price. Read the digits: IP55 is splash-proof, IP65 jet-proof, IP66 high-pressure jets, IP67/IP68 submersible. [src2, src4, src5, src9]
If the user is a Mac user
→ Corsair EX400U Survivor ($259.99/1TB) — full USB4 speed natively on Apple silicon, no drivers, MagSafe mount for iPhone ProRes capture. For a Thunderbolt 5 Mac (M4 Pro/Max or newer), the OWC Envoy Ultra ($699.99/2TB) roughly doubles read throughput. The LaCie Rugged SSD4 remains the most rugged Mac option but at $549.00/1TB is now a premium buy rather than the value pick it was earlier in 2026. [src2, src3, src10]
If a recommended drive shows as unavailable
→ Do not wait for restock; substitute by role. Lexar SL600 is out of stock at every capacity — use the Lexar Armor 700 ($209.99/1TB). LaCie Rugged SSD Pro5 is out of stock at 2TB and 4TB — use the OWC Envoy Ultra ($699.99/2TB) for Thunderbolt 5. SanDisk Extreme Pro USB4 is listed but unbuyable — use the Corsair EX400U Survivor at 2TB (~$429.99) for rugged USB4. Shortage stockouts have been lasting weeks, not days. [src3, src7, src9, src10, src11]
Default recommendation
→ Corsair EX400U Survivor ($259.99/1TB, $260/TB). Best balance of speed (USB4, 4,000 MB/s read, ~1,700 MB/s sustained write), durability (IP55, rubberised shell), size and price, and it is currently cheaper than the non-rugged version of the same drive. Safe pick for unknown requirements. [src1, src2, src5]
Key Market Trends (2026)
- The NAND shortage is now the dominant variable, not the specs: NAND flash contract prices rose 55-60% quarter-over-quarter in Q1 2026 and a further 70-75% in Q2, with Kingston publicly warning buyers that NAND costs are up 246% and "prices will continue to go up." Portable SSD street prices have risen 100-200% during 2026 and relief is not expected before late 2027. [src7, src11]
- Shortage pricing has scrambled within-brand hierarchies: the rugged Corsair EX400U Survivor ($259.99/1TB) is now less than half the price of the plain Corsair EX400U ($529.00/1TB) despite identical internals, and the LaCie Rugged SSD4 has climbed to $549.00/1TB. Brand-tier heuristics no longer predict price; check $/TB per capacity before buying. [src1, src2]
- Stockouts have become a buying constraint: the Lexar SL600, LaCie Rugged SSD Pro5 and SanDisk Extreme Pro USB4 lines were all unbuyable on Amazon US at every capacity on 2026-08-05. Availability now changes recommendations as often as price does. [src3, src9, src10]
- USB4 remains the performance sweet spot, and it is cheaper than premium 20Gbps: the Addlink P30 delivers 4,000 MB/s for $174.44/1TB, less than the Samsung T9 ($234.70/1TB) at 2,000 MB/s. Only buy 20Gbps or 10Gbps drives now if your host has no USB4 port or you want a specific rugged rating. [src2, src5, src8]
- Thunderbolt 5 is real but narrow: the OWC Envoy Ultra reaches roughly 6,000/5,000 MB/s on an M4 Pro/Max Mac at $699.99/2TB ($350/TB), with sustained writes settling near 1,350 MB/s. It needs a TB5 host, and the rival LaCie Rugged SSD Pro5 is currently unavailable, leaving the category thin. [src3, src10]
- Thermal management still separates USB4 drives: sustained write performance ranges from ~800 MB/s (Addlink P30) through ~1,700 MB/s (Corsair EX400U/Survivor, LaCie Rugged SSD4) to near-peak 3,700 MB/s (ADATA SE920 with its active fan). Peak-speed specs alone are misleading on any drive without active cooling. [src1, src6]
Important Caveats
- Prices shown are US Amazon listings verified on 2026-08-05 and are moving week to week under the NAND flash shortage. Every row states the capacity it prices and the resulting $/TB because capacity is the SKU — the same model at 1TB, 2TB and 4TB is a different ASIN at a non-linear price. Re-check before buying.
- Three lines were out of stock on Amazon US at every capacity on 2026-08-05: Lexar SL600, LaCie Rugged SSD Pro5, and SanDisk Extreme Pro USB4 (its listing stays live but cannot be purchased; the $529.00/2TB figure is the last price verified on 2026-06-30, not a current offer). Substitutes by role are given in Decision Logic.
- Advertised speeds require compatible host hardware. USB4 speeds (3,800+ MB/s) require a USB4 or Thunderbolt 4+ port; most laptops still ship with USB 3.2 Gen 2 (10Gbps) ports that cap speeds at ~1,050 MB/s regardless of SSD capability.
- Real-world sustained write speeds vary dramatically between drives. Tom's Hardware's 15-minute sustained write tests show the Corsair EX400U at 1,600-1,700 MB/s, Addlink P30 at ~800 MB/s, and LaCie Rugged SSD4 never below 1,650 MB/s — all despite similar peak specs of ~3,600-3,800 MB/s. The OWC Envoy Ultra settles at about 1,350 MB/s (2TB) despite peaking above 5,000 MB/s.
- Thunderbolt 5 drives require a Thunderbolt 5 host (Apple M4 Pro/Max, select Intel/AMD platforms) to reach advertised speeds and fall back to USB4/TB4 rates otherwise.
- SanDisk/Western Digital products have faced ongoing reliability concerns. PetaPixel excludes all SanDisk portable SSDs from their recommendations entirely due to frequent data loss failures. The newer USB4 Extreme Pro has not shown similar problems but carries the brand risk — a further reason not to wait out its stockout.
- IP ratings are per model and the digits matter: IP54 splash-resistant, IP55 splash-proof, IP65 jet-proof, IP66 high-pressure jets, IP67/IP68 submersible. "Rugged" branding on its own guarantees nothing.