ADATA HM-550 power supply unit vs HP 508148-001 power supply unit

Comparison of HM-550, 508148-001

23 specifications	A ADATA HM-550 power supply unit Model HM-550 View product	B HP 508148-001 power supply unit Model 508148-001 View product
Power1 differ
Total powerDiffers	550 W	850 W
AC input voltage	100 - 240 V	100 - 240 V
Input currentKnown for one	8 A	—Unknown — not stated by the source
EfficiencyKnown for one	82%	—Unknown — not stated by the source
Hold timeKnown for one	16 ms	—Unknown — not stated by the source
Power protection featuresKnown for one	Over current, Over power, Over voltage, Short circuit, Under voltage	—Unknown — not stated by the source
AC input frequencyKnown for one	—Unknown — not stated by the source	50 - 60 Hz
Ports & interfacesidentical
Peripheral (Molex) power connectors (4-pin)Known for one	0	—Unknown — not stated by the source
PCI Express power connectors (6-pin)Known for one	1	—Unknown — not stated by the source
PCI Express power connectors (6+2 pin)Known for one	2	—Unknown — not stated by the source
CPU power connector (4+4 pin)Known for one	Yes	—Unknown — not stated by the source
ATX power connector (20+4 pin)Known for one	Yes	—Unknown — not stated by the source
Performanceidentical
Mean time between failures (MTBF)Known for one	100000 h	—Unknown — not stated by the source
PurposeKnown for one	—Unknown — not stated by the source	PC
Compatible productsKnown for one	—Unknown — not stated by the source	Z800
Designidentical
Product colour	Grey	Grey
Cooling typeKnown for one	—Unknown — not stated by the source	Active
Fan diameterKnown for one	—Unknown — not stated by the source	14 cm
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 50 °C	—Unknown — not stated by the source
Storage temperature (T-T)Known for one	-20 - 70 °C	—Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	20 - 90%	—Unknown — not stated by the source
Safety regulation & standardsidentical
SafetyKnown for one	CE/CB/FCC/TUV/cUL/BSMI	—Unknown — not stated by the source
Other featuresidentical
Dimensions (WxDxH)Known for one	150 x 160 x 86 mm	—Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.