SSK
SSK External SSD 4TB Up to 2000MB/s External Solid State Hard Drives
Bottom line: The SSK External SSD 4TB Up to 2000MB/s External Solid State Hard Drives ($479.99 on Amazon as of 2026-10-07): Up to 2000 MB/s reads via USB 3.2 Gen2x2 (20Gbps); main trade-off: hitting full 2000 MB/s needs a USB 3.2 Gen2x2 host.
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*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Up to 2000 MB/s reads via USB 3.2 Gen2x2 (20Gbps)
- ✓ 4.7W draw runs bus-powered off iPhone 15, MacBook, or OTG phones
- ✓ 20Gbps SLC cache keeps write speeds steady under load
- ✓ Thick aluminum case aids heat conduction for stable transfers
Cons
- ✗ Hitting full 2000 MB/s needs a USB 3.2 Gen2x2 host
- ✗ 20Gbps only over USB-C; bundled USB-A cable caps at 10Gbps
- ✗ SLC cache reserves ~25% of free space, cutting usable capacity
- ✗ Windows reports ~931GB rather than the full 1TB
SpecPicks Verdict
SpecPicks scored SSK External SSD 4TB Up to 2000MB/s External Solid State Hard Drives using a rating × review-volume × price-fit model applied to published specs and reviews across the external storage category. SSK's external storage lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for external storage 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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- Capacity Reminder: Display capacity of 4TB SSD often appears as around 3725GB on Windows. MacOS typically shows full 4TB. This display capacity reduction of 7% to 10% from SSD actual capacity is from algorithms differences in which 1GB is interpreted as 1024MB on Windows and 1000MB on SSDs
- 20Gbps SLC Cache: Get ready for a revolution in data transfer. SSK external SSD boasts an impressive 20Gbps SLC CACHE, delivering unrivaled read and write speeds of up to 2000 MB/s. Say hello to seamless performance
- Fast Transfer: hanks to cutting-edge Ultra chip and premium 3D NAND, this SSD external hard drive ensures an efficient and durable performance. This external ssd remains steady 20Gbps by using high speed SLC caching (25%of the current available capacity is allocated for high speed cache)
- Data Security: Master external solid state drives health with S.M.A.R.T. monitoring. TRIM technology ensures consistent write speeds and extends the longevity of the portable SSD
- Universal Compatibility: SSK 4tb hard drive is your ideal storage expansion solution. It complies with USB 3.2 Gen2X2, offering 20Gbps USB-C and 10Gbps USB-A cable. OTG function making this external ssd compatible with a wide range of devices
Full Specifications
| Brand | SSK |
|---|---|
| Color | Silver |
| Model Name | SD600/4TB |
| Read Speed | 2000 megabytes_per_second |
| Unit Count | 1 Count |
| Form Factor | 2.5-inch |
| Media Speed | 2000 megabytes_per_second |
| Connectivity | USB-C |
| Model Number | SD600 |
| Compatibility | iOS, Mac |
| Built-In Media | USB-C to USB-A (10Gb/s) cable, USB-C to USB-C (20Gb/s) cable |
| Hard Disk Size | 4 TB |
| Hard-Drive Size | 4 TB |
| Mfr Part Number | SD600 |
| Number of Items | 1 |
| Special Feature | 2000 MB/s, LED Light, On-The-Go (OTG) Function, Portable, S.M.A.R.T. & TRIM |
| Installation Type | External Hard Drive |
| Compatible Devices | Desktop, Laptop, Smartphone, Tablet |
| Data Transfer Rate | 2000 megabytes_per_second |
| Enclosure Material | Aluminum |
| Full listing title | SSK External SSD 4TB Up to 2000MB/s External Solid State Hard Drives | 20Gbps USB3.2 Gen2X2 External SSD, SMART & TRIM, 4KHDR ProRes, LED Light, OTG, iphone 15/16/17 Pro Compatible, Aluminum Alloy |
Ready to buy?
SSK External SSD 4TB Up to 2000MB/s External Solid State Hard Drives | 20Gbps USB3.2 Gen2X2 External SSD, SMART & TRIM, 4KHDR ProRes, LED Light, OTG, iphone 15/16/17 Pro Compatible, Aluminum Alloy is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.
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