be quiet! Straight Power E9 power supply unit 400 W 20+4 pin ATX ATX Black
- Wattage
- 400 W
- Efficiency rating
- 80 PLUS Gold
- Depth
- 160 mm
- Width
- 150 mm
- Height
- 86 mm
- Weight
- 2240 g
- Purpose
- PC
- Fan speed
- 800
- Hold time
- 19
Overview
The be quiet! Straight Power E9 power supply unit 400 W 20+4 pin ATX ATX Black features 400 W output, 80 PLUS 80 PLUS Gold efficiency, a 135 mm fan and Active cooling. Full verified specifications are listed below.
Compatibility
Compatibility data is automatically generated. Always verify critical specs before purchase.
Technical Specifications
Showing 28 key specifications of 62
All values come from this product’s catalog record.- Wattage
- 400 W
- Efficiency rating
- 80 PLUS Gold
- Depth
- 160 mm
- Width
- 150 mm
- Height
- 86 mm
- Weight
- 2240 g
- Purpose
- PC
- Fan speed
- 800
- Hold time
- 19
- Efficiency
- 92.9
- Peak power
- 450
- ATX version
- 2.31
- Noise level
- 14.6
- Cabling type
- Non-Modular
- Cooling type
- Active
- Fan size
- 135
- Power factor
- 0.99
- Input current
- 3 - 6
- Number of fans
- 1
- Colour
- Black
- AC input voltage
- 100 - 240
- AC input frequency
- 50 - 60
- Bearing type
- FDB
- Combined power (+5V)
- 120
- Combined power (+12V)
- 384
- Combined power (+3.3V)
- 120
- Compliance certificates
- RoHS
- CPU P4 connector (4-pin)
- 1
Show all 62 specifications
- Certifications
- CE, CB, TÜV, Semko (S)
- Max output current (+5V)
- 17
- Max output current (+12V)
- 32
- Max output current (-12V)
- 0.3
- Power protection features
- Over current,Over power,Over voltage,Overheating,Short circuit,Under voltage
- Max output current (+12V1)
- 18
- Max output current (+12V2)
- 18
- Max output current (+12V3)
- 18
- Max output current (+3.3V)
- 24
- Max output current (+5Vsb)
- 3
- Package dimensions (WxDxH)
- 248 x 328 x 102
- Motherboard power connector
- 20+4 pin ATX
- Operating temperature
- 0 - 40
- Eco certifications
- ENERGY STAR
- Floppy drive power connector
- 1
- CPU power connector (4+4 pin)
- Yes
- Maximum input current (@110V)
- +12V1,+12V2,+12V3,+3.3V,+5V,+5Vsb,-12V
- Noise level (quiet mode, 50%)
- 13.8
- Noise level (silent mode,
- 13.7
- Number of SATA power connectors
- 5
- MTBF
- 300000 h
- Noise level (full-load mode, 100%)
- 14.6
- Power Factor Correction (PFC) type
- Active
- Power supply unit (PSU) form factor
- ATX
- PCI Express power connectors (6-pin)
- 1
- PCI Express power connectors (6+2 pin)
- 1
- Peripheral (Molex) power connectors (4-pin)
- 4
- buildcores_verified
- 1
- buildcores_opendb_id
- 828fde9c-cc6b-43c2-9460-8a3b0187951b
- buildcores_category
- PSU
- length_mm
- 160
- wattage
- 400
- form_factor
- ATX
- Package weight
- 2650 g
Market Value History
Price history table
| Date | Price |
|---|---|
| 2015-11-04 | $134.83 |
| 2021-11-24 | $119.75 |
| 2021-12-14 | $118.86 |
| 2021-12-20 | $118.46 |
| 2021-12-29 | $120.18 |
| 2022-01-03 | $121.04 |
| 2022-01-12 | $121.97 |
| 2022-01-18 | $122.24 |
| 2022-01-26 | $120.70 |
| 2022-01-31 | $119.85 |
| 2022-02-11 | $121.03 |
| 2022-02-14 | $121.34 |
| 2022-02-23 | $121.79 |
| 2022-02-28 | $120.14 |
| 2022-03-08 | $118.62 |
| 2022-03-17 | $116.84 |
| 2022-03-21 | $118.28 |
| 2022-03-29 | $118.38 |
| 2022-04-05 | $118.33 |
| 2022-04-14 | $117.04 |
| 2022-04-18 | $117.23 |
| 2022-04-28 | $113.15 |
| 2022-05-03 | $113.35 |
| 2022-05-09 | $111.66 |
| 2022-05-16 | $110.28 |
| 2022-05-24 | $112.88 |
| 2022-05-31 | $114.21 |
| 2022-06-06 | $114.23 |
| 2022-06-13 | $111.58 |
| 2022-06-21 | $110.84 |
| 2022-06-27 | $110.99 |
| 2022-07-05 | $110.08 |
| 2022-07-12 | $108.79 |
| 2022-07-18 | $107.53 |
| 2022-07-26 | $109.10 |
| 2022-08-02 | $110.93 |
| 2022-08-08 | $110.70 |
| 2022-08-18 | $109.95 |
| 2022-08-23 | $108.05 |
| 2022-08-31 | $106.58 |
| 2022-09-07 | $105.33 |
| 2022-09-12 | $104.29 |
| 2022-09-22 | $104.68 |
| 2022-09-26 | $98.65 |
| 2022-10-03 | $101.09 |
| 2022-10-15 | $103.10 |
| 2022-10-18 | $101.78 |
| 2022-10-25 | $103.13 |
| 2022-11-01 | $106.80 |
| 2023-01-27 | $113.74 |
| 2023-02-17 | $110.72 |
| 2023-03-16 | $111.99 |
| 2023-03-23 | $112.86 |
Customer Reviews & Feedback
Based on 66 verified customer reviews on Amazon US.
Review Verification
Hardware Quest synchronizes these ratings daily with Amazon to reflect real buyer experiences, build quality, and long-term reliability.
Sources
Product lifecycle
Status uncertainAvailable catalog signals are incomplete, so current lifecycle status cannot be confirmed.
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