
MPG X870E Carbon WiFi
$370–$409
X870E platform match
SilverStone ST45SF-G is a 2012 450W SFX, 80+ Gold, fully modular PSU for SFF and mid-range gaming, among the first fully modular Gold SFX units.
Announced on July 20, 2012 and reaching retail in early August 2012, the SilverStone ST45SF-G is an early SFX-series 450 W unit with 80 PLUS Gold efficiency and fully modular cabling. It uses a compact 100 mm–deep SFX chassis with a single +12 V rail rated at 37 A and ships with an SFX‑to‑ATX bracket for broader case compatibility.
Positioned as high_end for its time (Gold + fully modular), it exists to bring efficient, tidy power delivery to space‑constrained builds. It’s a solid fit for SFX/small‑form‑factor systems and mid-range gaming setups that don’t need ATX 3.0 or native 12VHPWR support. Notable: it was among the first SFX units to pair 80 PLUS Gold efficiency with fully modular cables. Discontinuation status is not clearly stated by the manufacturer.
Compatible options ranked for this part's performance class.

$370–$409
X870E platform match
$256–$283
X870 platform match
$228–$252
X870 platform match
$243–$269
Z890 platform match
$119–$131
Z790 platform match
$123–$136
Z790 platform match
$195–$216
B850 platform match
$155–$171
B850 platform match
$332–$367
B850 platform match
$114–$126
B760 platform match
$129–$143
B760 platform match
$133–$147
B760 platform matchCompatible options ranked for this part's performance class.

$114–$126
ATX motherboard fit
$190–$210
ATX motherboard fit
$256–$283
ATX motherboard fit
$534–$590
ATX motherboard fit
$579–$640
ATX motherboard fit
$255–$281
E-ATX, ATX, Micro-ATX, Mini-ITX motherboard fit
$94–$104
ATX motherboard fit
$85–$94
mATX motherboard fit
$171–$189
mATX motherboard fit
$142–$157
ATX motherboard fit
$100–$110
ATX motherboard fit
$114–$126
ATX motherboard fit