Silverstone SFX Series 80 Plus Bronze Certified SST-ST45SF-V3 450W SFX Active PFC Power Supply Version 3

After successfully revolutionizing both HTPC and SFF market segments with innovative chassis designs, SilverStone engineers continue their push for advancement in these categories by releasing a true upgrade-worthy small form factor power supply, the ST45SF. 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 ST45SF has features that one would expect from an elite ATX power supply such as 80 PLUS Bronze level of efficiency, temperature controlled fan, 50â?? / 40â?? 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 ST45SF is more than just an upgrade, it is an important milestone for the DIY desktop computer.

V2.0 has greater +3.3V and +5V output and higher temperature rating of 10â?? ~ 50â?? for NAS/storage focused systems or industrial PCs (IPC).
V3.0 has greater +12V output and lower noise for home desktops or gaming PCs.

ï¿­ Supports standard SFX form factor and ATX via included bracket

ï¿­ 450W continuous power output at 50â?? temperature rated for 24/7 operation (V2.0)

ï¿­ 450W continuous power output at 40â?? temperature rated for 24/7 operation (V3.0)

ï¿­ 80 PLUS Bronze level efficiency (82%~85% efficiency at 20%~100% loading)

ï¿­ Class-leading single +12V rail with 36A

ï¿­ Silent running 80mm fan (V2.0)

ï¿­ Silent running 92mm fan (V3.0)

ï¿­ Single PCI-E 8pin and dual PCI-E 6pin connectors support

ï¿­ Active PFC

Model No.	SST-ST45SF
Max. DC Output	450W
Power density	567W per liter
Load Range (V3.0)
+3.3V +5V +12V +5VSB -12V Max.(Amps) 20A 20A 37.5A 3A 0.3A Peak (Amps) / / / / / Min.(Amps) 0A 0A 0.3A 0A 0A Range (%) ±5% ±5% ±5% ±5% ±10% Line Reg.(%) ±1% ±1% ±1% ±1% ±1% Ripple(mVp-p) 50mA 50mA 120mV 50mV 120mV Load Range (V2.0)    +3.3V  +5V  +12V  +5VSB  -12V Max.(Amps)  21A  22A  36A  2.5A  0.5A Peak (Amps)  /  /  /  /  / Min.(Amps)  0.1A  0.2A  0.6A  0A  0A Range (%)  ±5%  ±5%  ±5%  ±5%  ±10% Line Reg.(%)  ±1%  ±1%  ±1%  ±1%  ±1% Ripple(mVp-p)  70mA  70mA  140mV  70mV  140mV
Color	Blackï¼?Lead-Free Paintï¼?
combined +3.3, +5V	110W (V3.0) 120W (V2.0)
Combined +12V	450W / 37.5A (V3.0) 432W / 36A (V2.0)
Input Voltage	90 ~ 264 Vrms
Input Frequency Range	47Hz ~ 63Hz
PFC	Active PFC.ï¼?PF>0.9 at Full Loadï¼?
Efficiency	82%~85%ï¼?20% to 100% loadingï¼?
MTBF	100,000 hours
Operating temperature	0 ~ 40â?? (V3.0) 10°C ~ 50°C (V2.0)
Protection	Over current protection Over voltage protection Short circuit protection Over Power Protection (V3.0 only) Under Voltage Protection (V3.0 only)
Connectors	1 x 24 / 20-Pin motherboard connectorï¼?300mmï¼? 1 x 8 / 4-Pin EPS / ATX 12V connectorï¼?400mmï¼? 1 x 8/6-Pin PCIE connectorï¼?400mmï¼? 1 x 6-Pin PCIE connectorï¼?400mm / 150mmï¼? 3 x SATA connectorï¼?300mm / 200mm / 100mmï¼? 2 x 4-Pin Peripheral connector ï¼?300mm / 200mmï¼? 1 x 4-Pin Floppy connectorï¼?300mm / 200mm / 200mmï¼?
Cooling System	Single 92mm silent fan (V3.0) Single 80mm silent fan (V2.0)
Noise Level	18dBA minimum
Dimension	125 mm (W) x 63.5 mm(H) x 100 mm(D) 4.92 (W) x 2.5 (H) x 3.94 (D)
Weight	1.1 kg (V3.0) 1 kg (V2.0)
Form factor	SFX
Other	Includes SFX to ATX bracket for use in ATX case GPU Support list Compatible with ATX12V v2.4