[ POWER CONVERSION // IDENTIFIED MODEL ]
Cooler Master V550 SFX Gold (MPY-5501-SFHAGV)
Manufacturer SKU MPY-5501-SFHAGV. Verify the printed unit label, production revision and regional suffix against matching manufacturer documentation before selecting or installing.
HIGH-VOLTAGE SAFETY: Disconnect mains before external inspection. Never open, probe or repair a PSU; hazardous voltage can remain after unplugging. Replace damaged, wet, burned, modified or unidentified units as complete assemblies or use qualified service.
Model-specific input, output & fit
| Manufacturer model / SKU | Cooler Master V550 SFX Gold; MPY-5501-SFHAGV. Market suffix and hardware revision must match the nameplate. | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rated output / efficiency certification | 550 W continuous class; 80 PLUS Gold as identified in manufacturer product material. Certification does not establish condition or system suitability. | |||||||||||||||
| Form factor / ATX/SFX revision | SFX; Original V SFX Gold generation, SFX form factor; legacy ATX12V/SFX12V-era interface, not ATX 3.x. Do not merge with later V SFX Gold revisions. | |||||||||||||||
| AC input | Use the exact regional nameplate for AC voltage, frequency and current; do not transfer an input range between regional variants. | |||||||||||||||
| Maximum DC output | 550 W total; per-rail and combined ceilings below remain controlling. | |||||||||||||||
| DC output rails |
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| Connectors / modular cables | Fully modular: ATX 24-pin ×1; EPS 4+4-pin ×1; PCIe 6+2-pin ×2; SATA ×8; peripheral 4-pin ×4; floppy lead per SKU bundle. | |||||||||||||||
| Mechanical envelope | 100 × 125 × 63.5 mm (depth × width × height). Confirm mounting points, inlet/fan orientation, obstruction and cable-bend clearance against the case drawing; never force-fit. | |||||||||||||||
| Fan mode / acoustics | 92 mm fluid-dynamic-bearing fan with thermal speed control; no fan-stop or dBA threshold is claimed without the matching guide. | |||||||||||||||
| Protection features | OCP, OVP, UVP, OPP, SCP and OTP protections as listed in manufacturer material; exact manual controls. |
Compatibility & safe installation
- Check 550 W and +12 V capacity, system load, GPU plug count, case opening and exact revision. Modular PSU-end pinouts are proprietary.
- Check motherboard ATX main power, CPU EPS, GPU leads, peak/transient load, each rail ceiling, AC region and cooling separately; plug shape and nominal wattage alone are insufficient.
- PSU-side modular pinouts are not standardized. Never transfer, splice, repin or adapt leads unless the manufacturer approves the exact cable for this exact model and revision.
- Compare connector clearance and cable-bend space against the actual chassis. Stop if label, connector inventory or production revision differs from the listing.
- Do not open or electrically probe the PSU. Isolate mains and replace a suspect assembly; qualified technicians must follow the matching model procedure.
Revision & sourcing notes
This page distinguishes the listed SKU from adjacent capacities, regional suffixes and redesigns. Similar branding is not enough to identify a cable set or electrical table. Manufacturer documentation and the physical nameplate take precedence where revisions differ.
Published certification and ratings describe the product as specified, not the condition or remaining service life of a used PSU.
Manufacturer sources
- Cooler Master V550 SFX Gold product pageManufacturer specifications for model identity, 550 W rating, dimensions, Gold tier and cooling.
- Cooler Master product support catalogManufacturer product documentation/downloads for the original SKU; confirm label and regional bundle.
Use the exact model/revision sources and the physical unit label. This reference is not a service procedure or connector pinout.