HPE ProLiant ML110 Gen11 Power Supplies
Genuine HPE Flex Slot power supplies for the HPE ProLiant ML110 Gen11, new and refurbished, tested for compatibility before shipping. The ML110 Gen11 takes up to two hot-plug Flex Slot supplies, and HPE lists four ratings for it from 500W to 1600W. A tower with one processor, sixteen DIMMs, up to sixteen drives and up to two GPUs can sit anywhere in that range, so the choice is a sizing decision, made once, because the second unit must match the first.
ML110 Gen11 Power Supply Specifications
- Kits listed: HPE 500W Flex Slot Platinum Hot Plug Low Halogen (865408-B21), HPE 800W Flex Slot Platinum Hot Plug Low Halogen (P38995-B21), HPE 1000W Flex Slot Titanium Hot Plug (P03178-B21), HPE 1600W Flex Slot Platinum Hot Plug Low Halogen (P38997-B21)
- Efficiency, per HPE: up to 94% for the Platinum units, up to 96% for the Titanium unit; all with a standard C-14 inlet
- Input: the 1600W kit supports high-line voltage only, 200 to 240 VAC; the others accept the standard Flex Slot input range
- Redundancy: up to two supplies for 1+1 redundancy; HPE states mixing two different power supplies is not supported
- Hot plug: all four are hot-plug, tool-less Flex Slot kits sharing the common Flex Slot electrical and physical design
- Sizing: HPE directs configurations to the HPE Power Advisor; processors run to 185W, the NVIDIA L4 is limited to a 150W processor, and the fan kit, drives and adapters all add up
Two of the same kit, and check the mains before choosing 1600W. HPE states mixing two different power supplies is not supported, so the rating is chosen once for the heaviest configuration the server will reach. The 1600W Flex Slot Platinum supports 200 to 240 VAC only; on a 110 to 120 VAC circuit the 1000W Titanium is the largest option listed.
Which ML110 Gen11 power supply do you need?
| Kit | Rating | Efficiency | Typical fit |
|---|---|---|---|
| 500W Flex Slot Platinum | 500W | 94% | A lean file or application server: one processor, a handful of DIMMs, a few drives |
| 800W Flex Slot Platinum | 800W | 94% | The general-purpose choice for a fully populated single-socket tower with SAS drives and adapters |
| 1000W Flex Slot Titanium | 1000W | 96% | The same headroom with the highest efficiency; the pick where the server runs continuously |
| 1600W Flex Slot Platinum | 1600W | 94% | GPU builds and full 16-drive configurations; 200 to 240 VAC only |
The 1600W unit's high-line requirement is the one constraint that changes the answer: on a 110 to 120 VAC office circuit it is not an option, and the 1000W Titanium becomes the ceiling. Everywhere else, size to the heaviest configuration the server will reach and buy two of that kit, since a mismatched pair is not supported.
Choosing the Right ML110 Gen11 Power Supply
- Two of the same kit. HPE states mixing two different power supplies is not supported; a redundant pair is two of one part number.
- Check the mains before choosing 1600W. HPE lists it for 200 to 240 VAC input only.
- Size for the GPUs and the fan kit. Two RTX A1000 or two L4 GPUs, the Redundant Fan Kit and a 185W processor add up quickly; run the configuration through HPE Power Advisor rather than assuming.
- Titanium for always-on. The 1000W unit's 96% efficiency pays back on a server that runs around the clock.
- Same kits, other servers. The 500W, 800W and 1000W Flex Slot supplies are shared with other Gen11 ProLiant servers, which simplifies spares.
Complete Your ML110 Gen11 Build
Power on this server scales with the processor, the drive count and the GPUs: see ML110 Gen11 processors, drives, memory, storage controllers and networking adapters, or the full ML110 Gen11 parts listing for the fan kit, the GPUs and the riser kits. The same Flex Slot kits serve the ML350 Gen11 and the ML30 Gen11; the previous generation is under ML110 Gen10 power supplies. The rest of the range is under HPE ProLiant ML tower server parts, and every model under HPE parts by server model.
ML110 Gen11 Power Supplies FAQ
Which power supplies does the ML110 Gen11 use?
Four HPE Flex Slot hot-plug kits are listed: 500W Platinum, 800W Platinum, 1000W Titanium and 1600W Platinum. The server takes up to two for 1+1 redundancy.
Can I mix two different power supplies in an ML110 Gen11?
No. HPE states that mixing two different power supplies is not supported. A redundant pair is two of the same kit.
Does the 1600W ML110 Gen11 power supply work on 120V?
No. HPE states the 1600W Flex Slot Platinum kit supports high-line voltage only, 200 to 240 VAC. On a 110 to 120 VAC circuit the 1000W Titanium is the largest option listed.
How much power does an ML110 Gen11 need?
It depends on the configuration: processors run from 125W to 185W, and drives, DIMMs, adapters, the fan kit and up to two GPUs add to that. HPE directs sizing to the HPE Power Advisor. An 800W or 1000W kit covers most fully populated single-socket builds without GPUs.
What is the efficiency of the ML110 Gen11 power supplies?
HPE quotes up to 94% for the Platinum kits - 500W, 800W and 1600W - and up to 96% for the 1000W Titanium kit. All use a standard C-14 inlet connector.
Are the ML110 Gen11 power supplies hot-plug?
Yes. All four listed kits are Flex Slot hot-plug supplies with tool-less installation, sharing the common Flex Slot electrical and physical design.
✅ Looking for a specific ML110 Gen11 power supply? Browse our full selection below.
Browse all models
Why Global One?
- Trusted by thousands. Over 36,000 customers in 100+ countries trust Global One Technology to deliver mission-critical HP Enterprise hardware - including Fortune 500 businesses, schools, hospitals, and federal, state, and local goverment agencies.
- HPE is our specialty! We only sell genuine HP Enterprise parts.
- EASY ordering process. Purchase online now with credit card or PayPal!
- FAST shipping. Global One Technology ships orders received by 4pm ET the same day and offers NEXT DAY delivery to US customers.
