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Article number: BN208

SYSTEM POWER B9

450W (bulk)

Proven Reliability and Good Efficiency

be quiet! System Power B9 450W (bulk) is specially designed to suit the needs of price-conscious PC builders.

OPTIMIZED FOR PROFESSIONAL SYSTEM INTEGRATORS

Cost effective and efficient handling

System Power B9 was designed to meet the needs of system integrators. The PSU is very cost-efficient and comes in production-optimized bulk packaging. This ensures quick and easy handling to streamline the production of pre-configured PCs.

VERY QUIET OPERATION

Achieved by high-quality fan

System Power B9 450W is equipped with a temperature-controlled 120mm fan. This ensures its operation produces the low noise that be quiet! is famous for.

80 PLUS® BRONZE CERTIFICATION

Very efficient operation

The 80 PLUS Bronze certification is certainly convincing evidence of this PSU’s efficientand power saving operation. It is remarkably effective for this class of PSU, achieving an efficiency rating of up to 89%.

HIGH PERFORMANCE FOR YOUR SYSTEM

Proven reliability for CPU and GPU

System Power B9 450W provides stable and dependable power for the CPU and GPU. It is equipped with 2 independent 12V-rails and supports graphics cards with 2 PCI express connectors for powerful GPUs.

INNOVATIVE DC-TO-DC CONVERSION

Equipped with a wealth of advanced technology

The PSU is equipped with DC-to-DC conversion for tight voltage regulation, even under heavy cross-loading conditions. This ensures reliable operation and is ready for the next generation of processors and graphics cards.

COMPREHENSIVE PROTECTION

A complete range of safety features

Top component protection with a full suite of safety functions, including OCP, OVP, OPP, OTP UVP and SCP, which provide the ultimate in secure operation.

All models at a glance:

Product Series

General data

ModelSystem Power B9 450W (bulk)
Continuous power (W)450
Peak power (W)-
Form factorVersion 2.4
Form factor EPS 12V-
Modular Cable management-
TopologyDC/DC
Wire-free design (DC-side)-
Voltage (Vac)200 - 240
Frequency (Hz)50
Input current (A)4
PFCactive
Power factor at 100% load>0.95
Compliant to Intel C6/C7
Power consumption in standby (W)<0.15
Average life time (h / 25°C)100,000
Operating temperature up to (°C)40

Infographics

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Output

12V rails (multi-rail operation)2
12V single rail operation-
Overclocking key-
+3.3V (A)24
+5V (A)15
+12V1 (A)23
+12V2 (A)19
+12V3 (A)-
+12V4 (A)-
+12V5 (A)-
+12V6 (A)-
-12V (A)0.3
+5Vsb (A)3
Max. combined power 12V (W)420
Max. combined power 3.3V + 5V (W)110
Hold-up time at 100% load (ms)17 (@75%)
Power good signal100 - 500ms

Fan / Cooling technology

Fan typeHigh quality fan
+SilentWings-
Bearing technologySleeve
Motor technology4-pole fan motor
Fan size (mm)120
Max. fan speed (rpm), temperature-dependent1800
Temperature control for case fans-
dB(A) at 20% load8.9
dB(A) at 50% load11
dB(A) at 100% load24

Protection

OCP (over current protection)
OVP (over Voltage protection)
UVP (under Voltage protection)
SCP (short circuit protection)
OTP (over temperature protection)
OPP (over power protection)
SIP (Surge & Inrush Protection)

Safety certification

CE
CB
TÜV
FCC-
cRUus-
cTUVus-
RCM (Australia)
BSMI-
CU (Russia)
CCC-

Eco / Efficiency

80 PLUS certificationBronze (230V EU internal)
Efficiency (%) at 230V, 20% load89
Efficiency (%) at 230V, 50% load89
Efficiency (%) at 230V, 100% load86

Environmental directives

Energy Star6.1
ErP
WEEE
RoHs

Cables / Connectors

Nvidia® SLI (RTX 3090) ready-
Cable managementFixed
Sleeved cables-
Cable length to mainboard (cm)55
Flat cables-
Cable length to first connector (cm)50
Maximum cable length (cm)95
All-in-one cable (SATA/PATA/FDD)-
No. of cables5
ATX-Motherboard (20+4-pin)1 (24-pin)
P8 (CPU)-
P4+4 (CPU)1
P4 (CPU)-
PCI-e 6-pin (GPU)-
PCI-e 6+2-pin (GPU)2
PATA2
SATA6
FDD (Floppy)-
External fan connectors-

Casing

Dimensions without cable (L x W x D), (mm)140 x 150 x 86
Weight (kg)1.86
Color-

Accessories

Thumb screws-
Screws-
Cable ties-
Velcro cable ties-
Box/Bag for PSU/Cables-
User manual languages-
OCK slot bracket with switch / OCK jumper-
SFX-to-ATX adapter bracket-

Service

Warranty (Years)3
Express replacement service in first year-
International hotline / free of charge✓ / DE, FR

Logistics data, RRP

Article numberBN208
EAN code4260052186008
Dimensions, package (L x W x H), (mm)-
Gross weight, package (kg)-
Pieces per packaging unit10
Dimensions, shipping box (L x W x H), (mm)195 x 525 x 545
Gross weight, shipping box (kg)20.5
RRP (€)-

SYSTEM POWER B9 | 450W (bulk)
Article number: BN208

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