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Samsung 990 PRO 4TB M.2 2280 internal SSD green circuit board with black controller and silver label

SAMSUNG

SAMSUNG 990 PRO 4TB internal SSD M.2 2280 PCIe 4.0 x4 NVMe 2.0

SKU CH-K6R8-KC85R

4 TB PCIe 4.0 NVMe drive reaching 7450 MB/s read and 6900 MB/s write with 55 % faster random performance and 50 % better performance per watt than the 980 PRO

  • Device TypeInternal Solid State Drive (SSD)
  • 4TB capacity stores massive game libraries and creative projects
  • Up to 7450 MB/s read speeds load levels and files faster
  • Up to 6900 MB/s write speeds accelerate renders and large transfers
  • 55% random performance improvement over 980 PRO handles heavy multitasking
  • 50% better performance per watt than 980 PRO reduces heat and power draw

4 TB PCIe 4.0 NVMe drive

The Samsung 990 PRO is an M.2 2280 internal solid state drive built on a PCIe 4.0 x4 interface with NVMe 2.0 support. It targets enthusiasts and professionals who need high capacity and fast data access for gaming, video editing and heavy computing workloads.

Sustained load behaviour

The nickel-coated controller manages heat so the drive maintains performance during extended sessions rather than throttling after a short burst. Power efficiency improves by up to 50 percent per watt over the 980 PRO, letting the drive handle continuous workloads with lower thermal output.

Installation and common issues

The standard M.2 2280 form factor fits compatible motherboard slots and is secured with a single screw. Most installation problems arise when the motherboard BIOS lacks NVMe boot support or when the slot shares bandwidth with other devices, limiting the drive to lower speeds.

Highlights

  • 4TB capacity stores massive game libraries and creative projects
  • Up to 7450 MB/s read speeds load levels and files faster
  • Up to 6900 MB/s write speeds accelerate renders and large transfers
  • 55% random performance improvement over 980 PRO handles heavy multitasking
  • 50% better performance per watt than 980 PRO reduces heat and power draw

Specifications

Device TypeInternal Solid State Drive (SSD)

Questions about this item

How much heat does the 990 PRO 4TB generate during sustained PCIe 4.0 x4 workloads?

The nickel-coated controller provides effective thermal control so the drive maintains performance without overheating the system during extended use.

Does the M.2 2280 form factor require a specific motherboard slot to run at PCIe 4.0 x4?

It needs an M.2 slot wired for PCIe 4.0 x4 with NVMe support; older slots limited to PCIe 3.0 will still work but at reduced bandwidth.

Will the 990 PRO 4TB work reliably alongside a 980 PRO drive in the same system?

Yes, both drives use the same M.2 2280 form factor and NVMe protocol, so they can coexist; each will operate at its own PCIe generation speed.

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