We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
HPE 400GB SATA 6.0Gb/s 3.5 inch internal solid state drive

HPE

HPE 863731-B21 400GB SATA 6.0Gb/s 3.5" internal hard drive

SKU CH-GQZZ-NAFC8

400 GB SATA 6.0 Gb/s 3.5" internal solid-state drive for desktop storage

  • PackagingBare Drive
  • InterfaceSATA 6.0Gb/s
  • Capacity400GB
  • Average Latency6Gb/s
  • Form Factor3.5"
  • 400GB capacity stores operating system and applications
  • SATA 6.0Gb/s interface delivers fast sequential throughput
  • 5-inch LFF form factor fits standard drive bays
  • Solid-state design provides silent, vibration-free operation
  • New HPE enterprise drive ensures consistent reliability

Purpose-built capacity

The HPE 863731-B21 is a 400GB solid-state drive built for 3.5-inch bays using a SATA 6.0Gb/s interface. It targets servers or workstations that need low-latency storage in a large-form-factor slot without moving parts. The bare-drive packaging suits integrators who install directly into drive cages or hot-plug trays.

Upgrade path

It replaces mechanical 3.5-inch hard drives where faster access times and silent operation matter most. The jump is worth it when boot times, application loading or mixed read-write workloads benefit from solid-state responsiveness on an existing SATA backplane.

Capacity and headroom

At 400GB the drive comfortably holds an operating system, core applications and active project files. It runs out when large media libraries, multiple virtual-machine images or extensive database tables demand more space than the single volume provides.

Highlights

  • 400GB capacity stores operating system and applications
  • SATA 6.0Gb/s interface delivers fast sequential throughput
  • 5-inch LFF form factor fits standard drive bays
  • Solid-state design provides silent, vibration-free operation
  • New HPE enterprise drive ensures consistent reliability

Specifications

BrandHP
Model863731-B21
PackagingBare Drive
InterfaceSATA 6.0Gb/s
Capacity400GB
Average Latency6Gb/s
Form Factor3.5"

Questions about this item

Will the 3.5" form factor of the HPE 863731-B21 fit a standard LFF drive bay?

Yes, the 3.5 inch form factor matches a standard large form factor bay and uses the regular SATA data and power connectors.

What is the installation step that is often missed with this SATA 6.0Gb/s SSD?

Connect both the SATA data cable and the SATA power cable, then verify the controller mode is set to AHCI in the system BIOS so the 6.0Gb/s link negotiates correctly.

How do I know when the 400GB drive is nearing its write endurance limit?

Monitor the SMART attribute for media wear-out indicator or percentage used; when it approaches the threshold the drive should be replaced to avoid data loss.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.