Description
The SanDisk E81 Extreme PRO Portable SSD (4 TB, model SDSSDE81-4T00-G25) is a high-speed external storage solution designed for professionals, creators, and power users who need massive space, fast transfers, and durability for large files like 4K/8K video, photo libraries, backups, games, and project data.
⚡ Performance
Capacity: 4 TB of storage — plenty of room for large media files and multiple backups.
Interface: USB-C with USB 3.2 Gen 2×2 for high bandwidth.
Speed: Up to ~2000 MB/s read and write speeds for fast file transfers and smoother workflows.
NVMe Technology: Uses solid-state NVMe performance inside the portable drive for quicker access and transfers.
🛡️ Durability & Build
Rugged Design: Forged aluminum chassis (sometimes with a silicone shell) doubles as a heatsink to help sustain performance and protect internal parts.
Water & Dust Resistance: IP55 or IP65 rated depending on version — protects against water splashes and dust.
Shock/Drop Resistance: Can survive drops from up to ~2–3 meters, ideal for travel or field use.
Portable: Compact and lightweight — easy to carry in a bag or pocket.
🔒 Security & Software
256-bit AES Hardware Encryption: Keeps your data safe with optional password protection.
SanDisk Memory Zone App: Manage files, monitor drive health, and free up space with the companion app (software download required).
💻 Compatibility
Multi-Device Support: Works with Windows, macOS, and Android (via USB-C), and usually includes USB-C to USB-A adapter for older PCs.
Bus-Powered: Does not need external power — runs off the USB connection.
📦 What’s in the Box
Typically includes:
4 TB SanDisk Extreme PRO Portable SSD
USB-C to USB-C cable
USB-C to USB-A adapter/cable
Safety & warranty guide
🧑💻 Best For
Content creators editing and storing high-resolution video and large photo collections.
Professionals needing fast backups and reliable, portable storage.
Gamers and users with big game libraries or large files.






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