P64999-B21: HPE 800GB NVMe Gen4 Mainstream Performance Mixed Use SFF BC U.3 Static V2 SSD

Also listed as: P64999-001, P65020-001, KCMY1VUG800G · made by Kioxia

An enterprise-class 800GB NVMe PCIe 4.0 mixed-use solid state drive in a Basic Carrier (BC) U.3 form factor for HPE ProLiant Gen11 and Gen12 servers. Built for intensive write-and-read database logs, transaction processing, and caching tiers, it delivers high IOPS with 3 drive writes per day endurance. When buying used, ensure the drive includes genuine HPE digitally signed firmware so it registers correctly in HPE Smart Storage Administrator and iLO, and verify SMART health wear indicators.

Specifications

About the P64999-B21

P64999-B21 is HPE's 800GB mainstream performance mixed-use NVMe solid state drive in the 2.5-inch Basic Carrier U.3 form factor introduced for ProLiant Gen11 and Gen12 servers. Built upon enterprise-grade high-endurance TLC flash from manufacturers like Kioxia (CM7-V platform), it operates across a PCIe Gen4 x4 interface. Rated at 3 drive writes per day (DWPD), it sits in HPE's high-write-endurance tier, targeted at transactional database write-ahead logs, transaction processing, and low-latency storage tier caching where raw IOPS and longevity take priority over sheer capacity.

Compatibility

This drive is compatible with small form factor (SFF) drive bays in ProLiant Gen11 and Gen12 servers including the DL360 Gen11, DL380 Gen11, DL385 Gen11, and DL325 Gen11. Because it utilizes the SFF-TA-1001 (U.3) interface, the host backplane must be cabled for NVMe, either directly routed to CPU PCIe lanes or connected through a tri-mode storage controller like the MR408i-o or MR416i-p. It ships in the HPE Basic Carrier (BC), making it physically incompatible with Gen10 and older Smart Carrier (SC) servers. The option SKU is P64999-B21, with spare units designated as P65020-001 or P64999-001.

How to identify a genuine unit

An original P64999-B21 bears an HPE label detailing the option kit part number, spare part number, and HPE digitally signed firmware release, mounted atop the OEM drive label. In iLO 6, navigating to the Storage view shows the device identified as an official HPE NVMe drive, reporting firmware revs and authenticated security certificates. Drives sourced from grey-market channels with wiped serials or generic manufacturer firmware will lack HPE SPDM attestation and will fail to update via HPE Service Pack for ProLiant.

Buying used

When acquiring used 800GB NVMe drives, check the smartctl NVMe log or iLO storage health to confirm the percentage of used endurance and verify that no critical media errors or spare blocks have been depleted. Since 800GB mixed-use drives often undergo write-heavy database duties, verify total bytes written against vendor limits. Always ensure the original Gen11 Basic Carrier is intact with its locking mechanism, as replacement carriers add unnecessary expense.

Reference prices (last 14 days, updated 2026-10-27)

Prices seen on public listings on the dates shown, before tax and shipping. Not an offer.

Fits these models

• HPE ProLiant DL380 Gen11
• HPE ProLiant DL360 Gen11
• HPE ProLiant DL385 Gen11
• HPE ProLiant DL325 Gen11

Equivalent part numbers

• Kioxia KCMY1VUG800G Retail Kioxia CM7-V 800GB NVMe U.3 equivalent

FAQ

Sources

• HPE NVMe PCIe Gen4 High Performance SSDs QuickSpecs, checked 2026-10-27