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Black rectangular portable SSD with blue LED indicator

SSK

SSK 4TB portable SSD Black 2000 MB/s

SKU CH-F612-3JHRS

4 TB portable SSD reaching 2000 MB/s over USB 3.2 Gen 2 with dual cables, LED activity light and zinc-alloy cooling

  • Total capacity4 TB
  • USB standardUSB 3.2 Gen 2
  • Product colorBlack

Capacity 4TB

  • Up to 2000 MB/s transfer speed measured on CrystalDiskMark 7.0
  • USB 3.2 Gen 2 interface enables 20 Gbps bandwidth for fast file access
  • Dual USB-C and USB-A cables included for broad device compatibility
  • S.M.A.R.T. health monitoring and TRIM support maintain performance and drive longevity
  • Zinc alloy enclosure improves heat dissipation by 30 percent for sustained operation

Capacity and purpose

The SSK 4TB portable SSD provides four terabytes of solid-state storage in a compact black enclosure. It targets users who need high-capacity external storage for large media libraries, project files or system backups while travelling or working across multiple devices.

Interface limits

The drive uses a USB 3.2 Gen 2 interface rated at 20 Gbps, with sequential speeds up to 2000 MB/s measured on CrystalDiskMark 7.0. Full performance requires a host port that supports USB 3.2 Gen 2x2; Thunderbolt and other ports are capped at 10 Gbps, and actual throughput varies with capacity, file sizes, system conditions and file count.

Installation and pitfalls

The package includes a 20 Gbps USB-C cable and a 10 Gbps USB-A cable for broad compatibility, and the drive operates on under five watts for direct phone OTG use. A blue LED shows real-time transfer activity to help prevent accidental unplugging; always eject safely before disconnecting. The zinc-alloy case improves heat dissipation, but sustained workloads on ports limited to 10 Gbps will not reach the advertised peak speed.

How it compares

Measured against everything we stock in Portable USB SSDs, at today’s prices. Recalculated every night.

Price $406.99
Pricier than about 78% of the 410 comparable items (median $202.99).
Total capacity 4 TB
Higher than about 90% of the 311 comparable items (median 1 TB).
Price per TB $101.75 per TB
Cheaper than about 75% of the 310 comparable items (median $142.00 per TB).

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Specifications

Product
Total capacity4 TB
Product colorBlack
Ports & slots
USB standardUSB 3.2 Gen 2

Other versions of this model

3 more in the same range

Questions about this item

Should I pick the 4 TB version or a smaller capacity?

The 4 TB model gives you the full 2000 MB/s headline speed; smaller capacities usually run slower on the same controller.

Will I actually see 2000 MB/s in everyday use?

That figure comes from CrystalDiskMark 7.0; real-world transfers vary with file size, system load and the host port.

Does the USB 3.2 Gen 2 connection limit the drive?

The drive uses USB 3.2 Gen 2x2 for up to 20 Gbps; Thunderbolt or USB 3.2 Gen 2 ports cap at 10 Gbps.

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