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Refurbished HP 2.5 inch 400GB SAS enterprise SSD

HP Refurbished

HP 632494-B21-R 400GB SAS 2.5" enterprise SSD

SKU CH-XR0Z-M5JTQ MPN 632494-B21-R

A 2.5" enterprise SSD with 400GB capacity using SLC memory and a SAS 6Gb/s interface

  • Total capacity400 GB
  • Interface typeSAS 6Gb/s
  • Form factor2.5 in (6.35 cm)
  • NAND flash typeSLC
  • SLC memory delivers consistent enterprise write endurance
  • SAS 6Gb/s interface fits standard server backplanes
  • 5" form factor suits dense drive bays
  • 400GB capacity supports critical workloads
  • Refurbished unit tested for reliable operation

HP 400GB SAS Enterprise SSD

The HP 632494-B21-R is a 2.5-inch enterprise solid-state drive with 400GB capacity. It uses SLC memory components and a SAS 6Gb/s interface. The drive is designed for server environments that demand consistent write endurance and low latency. This refurbished unit suits administrators replacing failed drives in existing arrays.

Compatibility checks before ordering

Verify that your server or storage controller supports SAS 6Gb/s connections and 2.5-inch drive bays. Confirm the backplane or caddy accepts the physical form factor without adapters. Check firmware revision requirements for the specific RAID or HBA model in use. Ensure the operating system or hypervisor includes drivers for SAS enterprise SSDs.

Sustained load behaviour

SLC memory provides stable write performance across extended workloads without the throttling seen in consumer drives. The SAS interface maintains consistent throughput during heavy random I/O patterns typical of database or virtualisation hosts. Endurance characteristics suit write-intensive applications running continuously. Thermal output remains predictable in multi-drive enclosures under sustained utilisation.

How it compares

Measured against everything we stock in Server & Data Center SSDs, at today’s prices. Recalculated every night.

Price $468.99
Cheaper than about 72% of the 1,039 comparable items (median $992.99).
Total capacity 400 GB
Lower than about 90% of the 522 comparable items (median 3.2 TB).
Price per TB $1,172.48 per TB
Pricier than about 84% of the 522 comparable items (median $595.64 per TB).

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Specifications

Product
Brand nameHP
Model name632494-B21-R
Total capacity400 GB
Storage
NAND flash typeSLC
Ports & slots
Interface typeSAS 6Gb/s
Size & build
Form factor2.5 in (6.35 cm)
Shipping weight0.45 kg
Package size254 × 203 × 127 mm

Questions about this item

What comes in the box with the HP 632494-B21-R 400GB SAS 2.5" enterprise SSD and what must be purchased separately?

The drive itself is supplied; a 2.5" SAS drive bay, compatible backplane and SAS cables are required separately.

Which capacity and memory type should I choose for write-heavy server workloads?

This model provides 400GB of SLC flash, which delivers higher endurance than MLC or TLC alternatives.

What does the 6 Gb/s SAS interface mean for actual throughput in a server?

The 6 Gb/s SAS link sets the maximum interface bandwidth; real-world speeds depend on the controller and workload.

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