The Seasonic CORE BC 650W is a reliable fixed-cable ATX 3.1 power supply designed for gaming, home and business PC builds. With 80 PLUS Bronze certification, a compact 140mm design and a 120mm Hydro Dynamic Bearing fan with Smart and Silent Fan Control, it delivers dependable power with efficient cooling. The 650W model meets ATX 3.1 requirements using conventional PCIe 6+2-pin graphics connectors rather than a 12V-2x6 cable.

Key Features
80 PLUS Bronze.
ATX 3.1 and PCIe 5.1 support.
Traditional PCIe 6+2-pin GPU connectivity; no 12V-2x6 cable on the 650W model.
Fixed / Non-Modular cable design.
120mm Hydro Dynamic Bearing (HDB) fan.
Smart and Silent Fan Control (S²FC).
Comprehensive OCP, OPP, OTP, OVP, SCP and UVP protection.
5-year manufacturer's warranty.

Full Specification
Model:
CORE BC 650W ATX 3.1

Manufacturer Part Number:
SRP-CBC651-A5A51JF

Output Power:
650W continuous power

Efficiency:
80 PLUS Bronze

Voltage Rails:
Single +12V rail

+12V Output:
54A / 648W

ATX Form Factor:
ATX/EPS

ATX Standard:
ATX 3.1

PCIe Standard:
PCIe 5.1

Cabling:
Fixed / Non-Modular

Connectors:
1 x 20+4-pin ATX
2 x 4+4-pin CPU/EPS
2 x 6+2-pin PCIe
2 x SATA
1 x 4-pin Molex

Fan:
120mm Hydro Dynamic Bearing (HDB) fan

Fan Speed Control:
Smart and Silent Fan Control (S²FC)

Power Input:
100-240V AC, 50/60Hz

Operating Temperature:
0-40°C

Power Output:
DC outputs: +12V, +5V, +3.3V, -12V and +5VSB

Cable Set:
Fixed individual black cables with braided pattern

Protection:
OCP - Over Current Protection
OPP - Over Power Protection
OTP - Over Temperature Protection
OVP - Over Voltage Protection
SCP - Short Circuit Protection
UVP - Under Voltage Protection

Special Features:
ATX 3.1 compliance using traditional PCIe 6+2-pin GPU connectivity, compact 140mm chassis

Warranty:
5-year manufacturer's warranty

Dimensions without cable (L x W x H), (mm)
140 x 150 x 86