This item, P70428-B21, is the HPE option part number for the product described as 6.4TB NVMe Gen4 High Performance Mixed Use SFF BC U.3 PS1030 SSD. Further details below.

The HPE 6.4TB NVMe Gen4 High Performance Mixed Use SFF BC U.3 PS1030 SSD (P70428-B21) is a genuine HPE drive for mixed read and write workloads on PCIe Gen4 NVMe servers. It ships in the SFF (2.5-inch) form factor on an HPE Basic Carrier (BC) and is hot pluggable, so it can be added or replaced without taking the server down. HPE rates it at up to 7,066 MiB/s sequential read and 6,345 MiB/s sequential write, 251,921 random read and 732,734 random write IOPS at a queue depth of 16, and a peak of 903,765 random read IOPS.

Endurance is 3.43 Drive Writes Per Day with 40,062 TB of lifetime writes, which suits balanced read and write work such as databases, virtualization and transaction logging. It draws 4.23 W idle and 20.31 W at most, in a 15 mm package. The firmware is digitally signed and HPE lists the drive for Gen11 and Gen12 platforms; the 23 ProLiant models in the Compatible With section below carry it in their QuickSpecs. Every part ships tested or factory sealed and is backed by a 3-year replacement warranty.

HPE Option Part #: P70428-B21
HPE Spare Part #: P70498-001

PRODUCT SPECIFICATIONS FOR P70428-B21:

• Product Number: P70428-B21
• Capacity: 6.4TB
• Interface: NVMe (PCIe Gen4)
• Drive form factor: SFF (2.5-inch)
• Carrier type: Basic Carrier (BC)
• Workload: Mixed Use
• Performance class: High Performance
• Plug type: Hot pluggable
• NAND type: TLC
• Port: Single
• Digitally signed firmware: Yes
• Server generations supported (QuickSpecs): Gen11, 12
• Lifetime writes (TB): 40,062
• Endurance DWPD (Drive Writes Per Day): 3.43
• Max sequential read / write (MiB/s): 7,066 / 6,345
• Random read / write latency (4KiB, Q1, µs): 60 / 14
• Random read / write IOPS (4KiB, Q=16): 251,921 / 732,734
• Max random read / write IOPS (4KiB): 903,765@256 / 794,791@256
• Power idle / max (Watts): 4.23 / 20.31
• Power random read / random write (Watts): 15.16 / 19.48
• Power sequential read / write (Watts): 12.75 / 15.62
• Height: 15 mm
• Weight: 1.00 lb
• Warranty: HPE Solid State Drives and Add-In Cards have a standard 3/0/0 warranty; Customer Self Repair (CSR) subject to maximum usage limitations.

COMPATIBLE WITH:

** This list may not be complete. Check HPE's QuickSpecs for your server to verify compatibility.

FREQUENTLY ASKED QUESTIONS FOR P70428-B21:

• Which HPE ProLiant servers list P70428-B21?
  HPE's server QuickSpecs list P70428-B21 for 23 ProLiant models across Gen10 Plus, Gen11 and Gen12, including the DL20 Gen11, DL320 Gen12, DL325 Gen10 Plus v2, DL325 Gen11. The full list is in the Compatible With section of this page.
• What endurance and workload is P70428-B21 built for?
  P70428-B21 is a mixed use drive rated at 3.43 drive writes per day with 40,062 TB of lifetime writes, per HPE Solid State Disk Drives QuickSpecs (a00001288enw, version 77, 05-October-2026).
• What carrier does P70428-B21 use and is it hot pluggable?
  P70428-B21 ships in the SFF (2.5-inch) form factor on an HPE Basic Carrier (BC) with a 15 mm height. It is hot pluggable, so it can be installed or replaced in a supported server without powering it down.

Last Updated: 2026-10-19