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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

  • USB SpecificationUSB 3.2 Gen 2
  • ColorBlack
  • Capacity4TB

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.

Highlights

  • 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

Specifications

USB SpecificationUSB 3.2 Gen 2
ColorBlack
Capacity4TB

Other versions of this model

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Same family, different memory, cooler or clock — compare before you commit.

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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