Product comparison · 2 power supply units

be quiet! Straight Power E7 vs be quiet! System Power S6

8specifications compared
4differ
4identical
39known for one product only

Key differences

Total power
- Straight Power E7:580 W
- System Power S6:700 W
Number of SATA power connectors
- Straight Power E7:6
- System Power S6:8
Peripheral (Molex) power connectors (4-pin)
- Straight Power E7:Yes
- System Power S6:4
Cabling type
- Straight Power E7:Semi-Modular
- System Power S6:Non-Modular

Side by side

Differences highlightedShow differences only

Comparison of Straight Power E7, System Power S6
47 specifications	A be quiet! Straight Power E7 View product	B be quiet! System Power S6 View product
Power1 differ
Total powerDiffers	580 W	700 W
Input currentKnown for one	Unknown — not stated by the source	5 - 10 A
Maximum input current (@110V)Known for one	Unknown — not stated by the source	+12V1,+12V2,+12V3,+12V4,+3.3V,+5V,+5Vsb,-12V
Power factorKnown for one	Unknown — not stated by the source	0.99
Power Factor Correction (PFC) typeKnown for one	Unknown — not stated by the source	Active
Combined power (+3.3V)Known for one	Unknown — not stated by the source	180 W
Combined power (+12V)Known for one	Unknown — not stated by the source	672 W
Combined power (+5V)Known for one	Unknown — not stated by the source	180 W
Max output current (+3.3V)Known for one	Unknown — not stated by the source	35 A
Max output current (+12V)Known for one	Unknown — not stated by the source	56 A
Max output current (+12V1)Known for one	Unknown — not stated by the source	18 A
Max output current (+12V2)Known for one	Unknown — not stated by the source	18 A
Max output current (+12V3)Known for one	Unknown — not stated by the source	18 A
Max output current (+12V4)Known for one	Unknown — not stated by the source	18 A
Max output current (+5V)Known for one	Unknown — not stated by the source	30 A
Max output current (-12V)Known for one	Unknown — not stated by the source	0.5 A
Max output current (+5Vsb)Known for one	Unknown — not stated by the source	3 A
EfficiencyKnown for one	Unknown — not stated by the source	87%
Hold timeKnown for one	Unknown — not stated by the source	23 ms
Power protection featuresKnown for one	Unknown — not stated by the source	Over current, Over power, Over voltage, Overheating, Short circuit
Ports & interfaces3 differ
Motherboard power connectorKnown for one	Unknown — not stated by the source	20+4 pin ATX
Number of SATA power connectorsDiffers	6	8
Peripheral (Molex) power connectors (4-pin)Differs	Yes	4
EPS power connector (8-pin)Known for one	Unknown — not stated by the source	Yes
PCI Express power connectors (6+2 pin)Known for one	Unknown — not stated by the source	2
CPU P4 connector (4-pin)Known for one	Unknown — not stated by the source	1
CPU power connectors (8-pin)Known for one	Unknown — not stated by the source	1
Cabling typeDiffers	Semi-Modular	Non-Modular
PCI Express power connectors (6-pin)Known for one	Yes	Unknown — not stated by the source
ATX Power connector (24-pin)Known for one	Yes	Unknown — not stated by the source
I/O portsKnown for one	1 x ATX 12V 24-Pin1x 5 x 4-Pin Molex (HDD) 5x 2 x 4-Pin Floppy (FDD) 2x 6 x S-ATA6x 1 x 4-Pin 12V 1x 1 x P8 Connector 1x 2 x 6-Pin PCI-Express 2x 1 x 6+2-Pin PCI-Express 1x 2 x 3-Pin Fan Connector 2x 2 x 4-Pin Fan Connector 2x	Unknown — not stated by the source
Performanceidentical
PurposeKnown for one	Unknown — not stated by the source	PC
Power supply unit (PSU) form factorKnown for one	Unknown — not stated by the source	ATX
80 PLUS certificationKnown for one	Unknown — not stated by the source	80 PLUS
ATX versionKnown for one	Unknown — not stated by the source	2.2
Designidentical
Cooling typeKnown for one	Unknown — not stated by the source	Active
Fan diameterKnown for one	Unknown — not stated by the source	12 cm
Number of fansKnown for one	Unknown — not stated by the source	1 fan(s)
On/off switchKnown for one	Unknown — not stated by the source	Yes
Certificatesidentical
CertificationKnown for one	Unknown — not stated by the source	CE, CB, TÜV, Nemko (N), Semko (S), Fimko (FI), Demko (D)
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	150 mm
DepthKnown for one	Unknown — not stated by the source	140 mm
HeightKnown for one	Unknown — not stated by the source	86 mm

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.

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