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be quiet!

be quiet! TFX POWER 3 300W Gold power supply unit 20+4 pin ATX Black

1 offer · 1 shop · last checked 2026-10-30 06:17 (Europe/Vienna)

Total power
300 W
Peak power
350 W
AC input voltage
100 - 240 V
AC input frequency
50 - 60 Hz
Product image: be quiet! TFX POWER 3 300W Gold power supply unit 20+4 pin ATX Black1 / 5

Item price

EUR 70,78

Sold by Netzwerkartikel.de · BN323 · New

Item price only. Check the cost details in the offers below.

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Observed item prices

Netzwerkartikel.de, one listing

This is the item price of one seller's listing, not a delivered total and not the best price across sellers.

Observed prices over time

Latest
EUR70,7830 Oct 2026
Lowest
EUR64,5828 Oct 2026
Highest
EUR70,7829 Oct 2026
Observed prices over time
DayLowestHighestLastChecks
30 Oct 2026EUR70,78EUR70,78EUR70,781
29 Oct 2026EUR70,78EUR70,78EUR70,781
28 Oct 2026EUR64,58EUR64,58EUR64,581

About this product

be quiet! TFX POWER 3 300W Gold, 300 W, 100 - 240 V, 350 W, 50 - 60 Hz, 4/2 A, 4 A

Read the full source description

TFX Power 3 300W Gold, the advanced, high-efficiency be quiet! compact PSU gives you more for your mini or media PC. It supports the latest standards while providing solid voltages and enough power to support a PCIe graphics card. The combination of quiet operation and reliability make the TFX Power 3 300W Gold the perfect choice for PCs with TFX form factor.

Text from Specs Icecat.

Specifications

66 specifications

Product data: Specs Icecat

GTIN
04260052188293
MPN
BN323
Power21
Total power
300 W
Peak power
350 W
AC input voltage
100 - 240 V
AC input frequency
50 - 60 Hz
Input current
4/2 A
Maximum input current (@110V)
4 A
Maximum input current (@220V)
2 A
Power factor
0.98
Power Factor Correction (PFC) type
Active
Combined power (+3.3V)
103 W
Combined power (+12V)
288 W
Combined power (+5V)
103 W
Max output current (+3.3V)
18 A
Max output current (+12V1)
13 A
Max output current (+12V2)
13 A
Max output current (+5V)
18 A
Max output current (-12V)
0.3 A
Max output current (+5Vsb)
3 A
Hold time
29 ms
Efficiency
90.6%
Power protection features
Over current, Over power, Over voltage, Short circuit, Under voltage
Ports & interfaces14
Motherboard power connector
20+4 pin ATX
Motherboard power cable length
35 cm
Number of SATA power connectors
3
SATA power cable length
300,450,600 mm
Peripheral (Molex) power connectors (4-pin)
2
Peripheral (Molex) power cable length
300,450 mm
PCI Express power connectors (6+2 pin)
1
PCI Express power cable length
40 cm
CPU P4 connector (4-pin)
1
CPU power cable length
35 cm
Floppy drive power connector
1
Floppy disk drive cable length
60 cm
PCI Express connector
Yes
Cabling type
Non-Modular
Performance7
80 PLUS certification
80 PLUS Gold
Purpose
PC
Power supply unit (PSU) form factor
TFX
ATX version
2.52
EPS version
2.92
Noise level
21.7 dB
Mean time between failures (MTBF)
100000 h
Design5
Product colour
Black
Cooling type
Active
Fan diameter
8 cm
Number of fans
1 fan(s)
Illumination
No
Certificates1
Compliance certificates
RoHS, WEEE
Safety regulation & standards1
Safety
CE, CB, TÜV, CU
Weight & dimensions4
Width
85 mm
Depth
175 mm
Height
65 mm
Weight
1.1 kg
Packaging data5
Package width
159 mm
Package depth
80 mm
Package height
215 mm
Package weight
1.43 kg
Package type
Box
Technical details2
Sustainability compliance
Yes
Sustainability certificates
ENERGY STAR, ErP
Logistics data6
Shipping (inner) case length
47.4 cm
Shipping (inner) case width
27.5 cm
Shipping (inner) case height
19.5 cm
Products per shipping (inner) case
6 pc(s)
Shipping (inner) case gross weight
9.39 kg
Harmonized System (HS) code
84733020