OWC OWCENVPK04
Score: 88/100
SanDisk Extreme PRO 4TB USB4
Score: 87/100Rankings
The OWC Envoy Pro Elektron 4 TB delivers near-internal SSD speeds in a rugged, IP67-rated aluminum enclosure while remaining lightweight and bus-powered. It's bootable and cross-platform but lacks a protective case and hardware encryption.
An ultra-fast USB4 portable SSD delivering near-internal SSD performance with strong security and ruggedness, best for high-end creators, but its size and need for a USB4 host limit portability for some users.
| Attribute | | |
|---|---|---|
4,000 GBbest | 4,000 GBbest | |
1,011 MB/s | 3,800 MB/sbest | |
1,011 MB/s | 3,700 MB/sbest | |
3 years | 5 yearsbest | |
| ↓ lower better | 85 gbest | 172 g |
| ↓ lower better | 12 mm | 9.65 mmbest |
| ↓ lower better | 76 mmbest | 100.84 mm |
| ↓ lower better | 52 mmbest | 52.58 mm |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(3) | ||
Interface | USB 3.2 Gen 2 | USB4 |
Sequential Read Speed (MB/s) | 1011 MB/s | 3800 MB/s |
Sequential Write Speed (MB/s) | 1011 MB/s | 3700 MB/s |
Warranty & Support(1) | ||
Warranty Period (years) | 3 years | 5 years |
Security(1) | ||
Hardware Encryption | false | true |
Compatibility(1) | ||
Supported Operating Systems | macOS 10.12–14.x, Windows 10/11, Linux, Chrome OS, iPadOS 13+, Android 13+ | Windows 10+, macOS 14+ |
Power(1) | ||
Power Source | bus-powered | Bus-powered |
Build & Design(6) | ||
Weight (g) | 85 g | 172 g |
Thickness (mm) | 12 mm | 9.65 mm |
Length (mm) | 76 mm | 100.84 mm |
Width (mm) | 52 mm | 52.58 mm |
Height (mm) | 12 mm | 100.84 mm |
IP Rating | IP67 | IP65 |
Products in the top-left offer the best value (high score, low price).
Professional reviewers praise its high speed, robust aluminum construction and IP67 rating, noting it as a top choice for 4K video work despite a higher price and missing hardware encryption.
Everyday users love the speed and durability, especially in field conditions, but complain about the missing protective pouch and the always-on LED brightness.
“Fastest external SSD I've ever used - edits 4K footage smoothly in Premiere Pro.”
“Survived a rainstorm on set and kept working - IP67 rating is legit.”
“Boots my Mac in seconds - perfect for testing OS updates.”
Professional reviewers commend the Extreme PRO USB4 SSD for its blazing peak speeds and rugged build, while warning that real-world performance depends on a fully compatible 40 Gbps host and noting occasional throttling on non-Thunderbolt 4 systems.
Users praise the drive's speed, plug-and-play ease, and durable design for on-location work, though they report initial connection hiccups, a larger form factor, and speed throttling after the cache is exhausted.
