HP Flexible Slot (Flex Slot) Power Supplies share a common electrical and physical design that allows for hot plug - tool-less installation into HP Proliant Gen10 Performance Servers. Flex Slot power supplies are certified for high-efficiency operation and offer multiple power output options - allowing users to right-size a power supply for specific server configurations. This flexibility helps to reduce power waste - lower overall energy costs - and avoid trapped power capacity in the data center.
865438-B21 HP 800W Flex Slot Titanium Power Supply
865438-B21G9 G10 Proliant Power Supply
Part#:865438-B21
Quantity:76 In stock
Warranty:Lifetime
Usually Ships:Same Day
Condition:
New
Price: $245.95
865438-B21Lifetime Warranty
Part#865438-B21 and Products ID490705 Purchased after January 01 2012 is covered by an Unconditional Lifetime Warranty for as long as you own your
server
Genuine HP 865438-B21
Security ID
490705
S/C: 764907051 PN: 865438-B21
This product will have a Genuine HPE security sticker. We do not sell 3rd party HPE products.
HP Proliant Gen 10 (G10) Series Servers
HP Proliant ML Series: ML350 (G10)
HP Proliant DL Series: DL385 (G10) DL560 (G10) DL580 (G10)
HP Proliant Gen 10 Plus (G10+) Series Servers
HP Proliant ML Series: ML30 (G10+)
HP Proliant DL Series: DL20 (G10+) DL325 (G10+) DL345 (G10+)
HP Proliant DL Series: DL360 (G10+) DL365 (G10+) DL380 (G10+) DL385 (G10+)
HP Proliant Gen 11 (G11) Series Servers
HP Proliant DL Series: DL20 (G11) DL360 (G11)
HP Proliant RL Series: RL300 (G11)
865438-B21 Flat Rate Shipping Options
We have 76 pieces of 865438-B21 in stock and ready to ship as of
Wednesday 3rd of June 2026
865438-B21
This product has a 30 Day return and a Lifetime replacement warranty.
