■ Supports standard SFX form factor
■ 450W continuous power output at 50℃ temperature rated for 24/7 operation (V2.0)
■ 450W continuous power output at 40℃ temperature rated for 24/7 operation (V3.0)
■ 80 PLUS Bronze level efficiency (82%~85% efficiency at 20%~100% loading)
■ Class-leading single +12V rail with 28A
■ Silent running 80mm fan (V2.0)
■ Single PCI-E 8pin 6+2pin connectors support
■ Active PFC

After successfully revolutionizing both HTPC and SFF market segments with innovative chassis designs, GameMax engineers continue their push for advancement in these categories by releasing a true upgrade-worthy small form factor power supply, the GS450.This SFX unit is compatible not only with chassis that use SFX power supplies but also in smaller ATX chassis with the included adapter bracket.Despite its small size, the GS450 has features that one would expect from an elite ATX power supply such as 80 PLUS Bronze level of efficiency, temperature controlled fan, 50℃ / 40℃ temperature rating, and reliability for 24/7 operation.Enthusiasts oriented features are also present with single +12V rail and 8pin/6pin PCI-E connectors to fully support multi-GPU systems.For SFF users and for SilverStone, the GS-450 is more than just an upgrade, it is an important milestone for the DIY desktop computer.


1.Designed for 80 PLUS Bronze level of efficiency to reduce wasted heat and save on electricity.
2.Built-in 92mm fan has excellent airflow and low noise, perfect for quiet home or office use. (V3.0)
Lastest PC case
Lastest PC case

3.Built-in 80mm fan has excellent airflow and low noise, perfect for quiet home or office use. (V2.0)

Lastest PC case

Model No.
Max. DC Output
Load Range

Peak (Amps)/////
Range (%)±3%±3%±3%±5%±10%
Line Reg.(%)±1%±1%±1%±1%±1%
Combined +3.3V & +5V100W
Combined +12V336W / 28A
Input Voltage100V ~ 240V
Input Frequency Range50Hz ~ 60Hz
PFCActive PFCPF>0.90 at full load
Efficiency82%~85%20% to 100% loading
MTBF100,000 hours at 25°C, full load
Operating temperature0°C ~ 40°C
ProtectionOver current protection
Over power protection
Over voltage protection
Over Temperature Protection
Under voltage protection
Short circuit protection
No Load Operation
Connectors1 x 24 / 20-Pin motherboard connector(300mm)
1 x 8 / 4-Pin EPS / ATX 12V connector(400mm)
1 x 6+2-Pin PCIE connector(400mm / 150mm)
2 x SATA connector(300mm /150mm)
1 x 4-Pin+SATA Peripheral connector (300mm / 150mm) 
Cooling SystemSingle 80mm silent fan
Form factorSFX
Noise Level18dBA minimum
Dimension125 mm (W) x 63.5 mm(H) x 100 mm(D)
4.92" (W) x 2.5" (H) x 3.94" (D)
Weight1.45 Kg
Certification80 PLUS Bronze
OtherCompatible with ATX12V v2.4
Specifications presented on this page contains most recent revisions and may differ from those printed on retail boxes or manuals.


GAMEMAX brand products of computer case and power supply were very popular among computer game players, become a reliable best brand in IT gaming accessories provider in worldwide!

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