Product comparison · 2 power supply units

Chieftec BPS-550S2 power supply unit vs Chieftec GPS-550A8 power supply unit

39specifications compared
12differ
27identical
9known for one product only

Key differences

AC input voltage
- BPS-550S2 power supply unit:100 - 240 V
- GPS-550A8 power supply unit:230 V
Combined power (+3.3V)
- BPS-550S2 power supply unit:120 W
- GPS-550A8 power supply unit:110 W
Combined power (+5V)
- BPS-550S2 power supply unit:120 W
- GPS-550A8 power supply unit:110 W
Max output current (+5V)
- BPS-550S2 power supply unit:15 A
- GPS-550A8 power supply unit:18 A
Max output current (-12V)
- BPS-550S2 power supply unit:0.8 A
- GPS-550A8 power supply unit:0.3 A
Max output current (+5Vsb)
- BPS-550S2 power supply unit:3 A
- GPS-550A8 power supply unit:2.5 A
Efficiency
- BPS-550S2 power supply unit:85%
- GPS-550A8 power supply unit:80%
Number of SATA power connectors
- BPS-550S2 power supply unit:6
- GPS-550A8 power supply unit:4

Side by side

Differences highlightedShow differences only

Comparison of BPS-550S2, GPS-550A8
48 specifications	A Chieftec BPS-550S2 power supply unit Model BPS-550S2 View product	B Chieftec GPS-550A8 power supply unit Model GPS-550A8 View product
Power9 differ
AC input voltageDiffers	100 - 240 V	230 V
Maximum input current (@110V)Differs	+12V1,+3.3V,+5V,+5Vsb	+12V,+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V
Combined power (+3.3V)Differs	120 W	110 W
Combined power (+5V)Differs	120 W	110 W
Combined power (-12V)Known for one	Unknown — not stated by the source	3.6 W
Combined power (+5Vsb)Known for one	Unknown — not stated by the source	12.5 W
Max output current (+3.3V)Known for one	Unknown — not stated by the source	18 A
Max output current (+12V2)Known for one	Unknown — not stated by the source	42 A
Max output current (+5V)Differs	15 A	18 A
Max output current (-12V)Differs	0.8 A	0.3 A
Max output current (+5Vsb)Differs	3 A	2.5 A
EfficiencyDiffers	85%	80%
Power protection featuresDiffers	Over voltage, Overload, Short circuit, Under voltage	Over power, Over voltage, Short circuit, Under voltage
Ports & interfaces2 differ
Number of SATA power connectorsDiffers	6	4
Peripheral (Molex) power connectors (4-pin)Differs	3	2
Performanceidentical
80 PLUS certificationKnown for one	80 PLUS Bronze	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	100000 h	Unknown — not stated by the source
Design1 differ
Product colourDiffers	Grey	Black
Cooling typeKnown for one	Unknown — not stated by the source	Active
LED indicatorsKnown for one	Unknown — not stated by the source	No
On/off switchKnown for one	Yes	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.

More power supply unit comparisons

All power supply unit comparisons