SSK
USB Flash Drive 512GB SSD External, TLC NAND Solid State Drive Dual USBC USBA Port, Up to 1000MB/s High-Speed Portable 512GB USB Thumb Drive Stick for iPhone 15/16/17 Pro, Mac, Android, PC Backup
*Price sourced from Amazon.com. Last updated 2026-05-23. Price and availability subject to change.
SpecPicks Verdict
SpecPicks classifies SSK USB Flash Drive 512GB SSD External, TLC NAND Solid State Drive… as a solid pick with broad community endorsement in the retro software & media category, based on 140 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. SSK's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for retro software & media of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Solid 4.4★ customer rating
- ✓ Backed by SSK's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- Blazing 10Gbps TLC NAND SSD Reliability: USB flash drive SSD Transfer up to 1000MB/s with USB 3.2 Gen2 and reliable TLC NAND flash. Note: File transfer speed may vary depending on host device, interface, and file type
- USB-C & USB-A for Every Device: Equipped with USB-C & USB-A dual ports, this 512GB SSD works seamlessly with laptops, tablets, Android, and iPhone 15/16/17 Pro. No adapters needed—just plug and play. Note: iPhone requires iOS 17 or later and Pro models with USB-C port for full-speed transfer
- Enterprise-Grade TLC NAND Flash SSD: Built with S.M.A.R.T. and TRIM optimization, this SSD ensures long-term reliability under heavy workloads. Perfect for reliable file manage and backup. Note: Please safely eject the SSD drive after use to maintain data integrity
- Zinc Alloy Cooling & Steady Operation: The premium Zinc Alloy casing dissipates heat 30% faster than plastic, keeping performance steady during long transfers. Direct TLC Write technology reduces chip stress and extends endurance. Note: Continuous high-speed transfers may cause the casing to warm up—this is normal and safe
- Compact 512GB USB Drive Powerhouse: Carry your entire digital world in your pocket. With full 1TB physical capacity (shows 476GB on Windows, 512GB on macOS due to binary/decimal calculation methods), you get maximum usable storage without hidden cuts. Note: Pre-formatted as exFAT for universal compatibility; can be reformatted as needed
Full Specifications
| Brand | SSK |
|---|---|
| Color | Space Gray |
| Model Name | SD311 PRO/512GB |
| Read Speed | 1000 Megabytes Per Second |
| Unit Count | 1.0 Count |
| Form Factor | USB Drive Form Factor |
| Media Speed | 1000 Megabytes Per Second |
| Connectivity | USB-C |
| Model Number | SD311 PRO |
| Compatibility | PC, Android, iOS, Mac |
| Built-In Media | Dual-Head USB SSD, Extra Leather Case |
| Hard-Drive Size | 512 GB |
| Mfr Part Number | SD311 PRO |
| Number of Items | 1 |
Ready to buy?
SSK USB Flash Drive 512GB SSD External, TLC NAND Solid State Drive Dual USBC USBA Port, Up to 1000MB/s High-Speed Portable 512GB USB Thumb Drive Stick for iPhone 15/16/17 Pro, Mac, Android, PC Backup is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-23. Price and availability subject to change.
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