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Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
$625.00
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865438-B21
800W FS TI HT PLG LH PWR SPLY KIT PL SI
Federal agencies and Fortune 500 operations source through ORM Systems.
US Government & Defense
Enterprise Clients
Regional teams and 25+ distribution partners keep stock near you and accountability in your time zone.
Pay by PayPal or Revolut with full chargeback rights. Order on PO terms, Net-30 for government.
Every registration we claim is public record — check our federal contractor status yourself before you spend a dollar.

Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
865438-B21 is a high-performance power supply unit delivering 750W of power through a fully modular design in an ATX form factor. It meets Gold 80 PLUS certification standards, operates on a wide 100–240V input voltage, and employs active PFC for improved power efficiency.
Engineered with a 120mm fan featuring a fluid dynamic bearing, it comes equipped with comprehensive protections including OCP, OVP, UVP, SCP, and OTP. The unit provides essential connectors – one ATX 24-Pin, one EPS (CPU) 4+4 Pin, two PCIe (6+2) for GPU, six SATA power connectors, and three Molex connectors – all combined with sleeved cables for enhanced build quality, low noise levels, and versatility for gaming, workstation, and enterprise server applications.
865438-B21 price is $240.00, a 61.6% saving from the Hpe list price of $625.00. 865438-B21 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for 865438-B21 for additional pricing. Browse the full Hpe Power Supplies series or explore all Hpe products.
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| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Wattage | 750W | 1500W | 850W | 650W | 750W |
| Use Case | Enterprise Server / Workstation / Gaming | Gaming | Gaming / Workstation / Enterprise Server | Gaming / Workstation / Server | Gaming / Workstation / Server |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Modularity | Modular | Modular | Modular | Modular | Modular |
| 80 PLUS Certification | Gold | Gold | Platinum | Gold | Gold |
| Rail Configuration | Single Rail | Single Rail | Single Rail | Single Rail | Single Rail |
| Certifications | 80 PLUS / CE / FCC | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS | UL | 80 PLUS |
| Input Voltage | 100–240V | 100–240V | 100–240V | 100–240V | 100–240V |
| Hot-Swap Capable | No | No | No | No | No |
| PFC (Power Factor Correction) | Active PFC | Active PFC | Active PFC | Active PFC | Active PFC |
| Fan Size | 120mm | 140mm | 135mm | 120mm | 120mm |
| Fan Bearing Type | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic |
| Zero RPM Mode | Yes | Yes | Yes | Yes | Yes |
| Efficiency Rating | 94% | 92% | 94% | 94% | 92% |
| Protections | OCP / OVP / UVP / SCP / OTP | OCP / OVP / UVP / SCP / OTP | OCP / OVP / SCP / OTP | OCP/OVP/SCP/OTP | OCP / OVP / SCP |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| EPS (CPU) 4+4 Pin | 1 | 2 | 1 | 1 | 1 |
| PCIe (6+2) Connectors | 2 | 4 | 2 | 2 | 2 |
| SATA Power Connectors | 6 | 8 | 6 | 6 | 6 |
| Floppy Connector | No | No | No | No | No |
| Cable Type | Sleeved | Sleeved | Sleeved | Sleeved | Sleeved |
| RGB Lighting | No | No | No | No | No |
| MTBF (Mean Time Between Failures) | 150,000 hours | 150,000 hours | 150,000 hours | 150,000 hours | 150,000 hours |
| Operating Temperature | 50°C | 50°C | 50°C | 50°C | 50°C |
| Product Name | 865438-B21 High Performance ATX Power Supply | 867876-B21 Ultra Performance Power Supply | JC087A High-Efficiency Platinum Modular ATX Power Supply | 656363-B21 High Efficiency Modular Power Supply | 753618-B21 |
| Height | 5.0 inches | 5.5 inches | 5.5 inches | 5 inches | 5.5 inches |
| Width | 6.3 inches | 6.3 inches | 8.6 inches | 6 inches | 6.3 inches |
| Depth | 5.9 inches | 11 inches | 6.3 inches | 4 inches | 5.4 inches |
| Weight | 8.5 lbs | 4.8 lbs | 3.2 lbs | 4 lbs | 4 lbs |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Titanium efficiency PSU reduced power waste.
Quiet operation and steady output.
OEM power supply installed easily.
Excellent efficiency for data centers.
Very dependable.
The kit includes an 800W fully modular power supply with 80 PLUS Titanium efficiency, hot-plug capability, left-hand power connection, mounting hardware and power cables.
This power supply kit is compatible with HPE ProLiant ML, DL and BL series Gen8 and later servers; please verify your model in the HPE server compatibility matrix.
It holds an 80 PLUS Titanium certification, delivering up to 96% efficiency under typical loads to reduce energy costs and heat.
Yes. The hot-plug design enables safe removal and replacement without shutting down the server, ensuring continuous uptime.
Slide the fully modular unit into the designated PSU bay, secure it with provided screws, connect cables to the motherboard and devices, then power on.
The unit measures 86 mm (H) x 150 mm (W) x 200 mm (D), fitting standard 1U/2U server chassis with adequate bay clearance.
Under typical rack loads, it operates at 32 dBA, meeting standard data-center noise requirements.
Yes. You can deploy multiple units in parallel for N+1 or 2N redundancy, ensuring fault tolerance in critical environments.
It operates reliably from 0 °C to 50 °C ambient temperatures, with components rated up to 60 °C for high-heat environments.
The kit is certified to UL 62368-1, CE, FCC, CB and RoHS, ensuring global electrical safety and environmental compliance.
The LH connector directs cables away from airflow paths, optimizing rack airflow and simplifying cable routing.
HPE provides a three-year limited warranty, global 24/7 phone support, and optional extended coverage plans.
Yes. It features built-in surge protection and active power factor correction to guard against input voltage fluctuations.
Yes. It integrates seamlessly with HPE Redundant Power System backplanes for enhanced availability.
Use HPE iLO or Onboard Administrator to view real-time input/output voltages, load percentages and temperature metrics.
Perform regular dust cleaning, firmware updates and periodic load tests to maintain optimal performance and longevity.