Key Features:
Power Output:
180W Total Power — designed for efficient low-to-mid-range desktop systems.
Form Factor:
Small Form Factor (SFF) — compact size for small desktops, often non-standard ATX size.
Connector Type:
4-Pin Power Connector — used to supply power to the motherboard (proprietary HP design).
May also include SATA connectors for HDDs/SSDs and peripheral devices.
Compatibility:
Compatible with HP models:
HP 89
HP 86
HP 390 / 390 G3 / 390 G4
HP 280 / 280 G3 / 280 G4
Efficiency:
Often meets 80 PLUS Bronze or Gold standards (varies by model), providing better energy efficiency and reduced heat.
Input Voltage:
100–240V AC input — supports a wide range of voltage standards globally.
Cooling:
Integrated cooling fan (typically 80mm or 90mm) to maintain safe operating temperatures.
Safety and Protections:
Built-in protections like:
Over Voltage Protection (OVP)
Over Current Protection (OCP)
Short Circuit Protection (SCP)
OEM Build:
Specifically made by HP or their OEM partners (e.g., Delta, Lite-On, or HiPro).
Not a standard off-the-shelf PSU; it may require an HP-compatible case and motherboard.
Key Specifications
Model variants / part numbers:
PA‑1181‑3HB (part# L07658‑001, L17839‑001) – for 280 G3/400 G5 SFF
PA‑1181‑6HY / D16‑180P3A (PCH023) – for 280/390 G3/G4, 86/89 series
PA‑1181‑6HA (901762‑001) – another common variant
AC Input: 100–240 V, 50–60 Hz (auto‑switching)
Total Output Power: 180 W max
Efficiency rating: While not always listed, some third-party sellers market it as 80 PLUS Gold (~85 %)
Summary Table
| Specification | Details |
|---|---|
| Input Voltage | 100–240 V AC, 50–60 Hz |
| Output Power | 180 W max |
| Efficiency | ~85 % (claimed Gold) |
| Connectors | 4‑pin CPU, 4 + 7‑pin motherboard, optional 6‑pin PCI‑E |
| Part Numbers | PA‑1181‑3HB / PA‑1181‑6HY / PA‑1181‑6HA |
| Case Fitment | SFF / Microtower HP ProDesk & Elite/280/390 Series |