Seasonic develops new 250W-430W platform, XFX and Hydance follow

Seasonic ECO

Seasonic's new low-power design has already taken a comfy place on the market, but other companies won't stay behind for long - XFX and Hydance will soon release their own versions of Seasonic ST.

It's aimed at users who don't need a lot of power and expect high efficiency at low loads. The component layout looks similar to Seasonic S12II Bronze, but there's one distinct change - the 3.3V rail is now generated by a DC-DC converter, which should improve efficiency and voltage stability.

Model OEM Platform Power Operating voltage
Efficiency +12V capacity
SSP-250ST/SE
Active PFC F3/T3
Seasonic ST 250W 230V-only for T3,
Universal for F3
80+ Bronze,
80+ Bronze 230V EU for T3
20A
240W
SSP-300ST/SE
Active PFC F3/T3
300W 18A 18A
288W
SSP-350ST/SE
Active PFC F3/T3
350W 18A 18A
324W
SSR-350ST
Active PFC F3/T3
SSP-430ST/SE Active PFC T3,
SSR-430ST Active PFC T3
430W 18A 18A
396W

XFX

XFX' 430W version is already selling in Europe and Japan, and it will soon meet its smaller siblings, the 300W and 350W units.

Model OEM Platform Power Operating voltage
Efficiency +12V capacity
XPS-300W-SEW
Seasonic ST 300W ~230V only
80+ Bronze 230V EU
18A 18A
288W
XPS-350W-SEW 350W 18A 18A
324W
XPS-430W-SEW 430W 18A 18A
396W

Hydance

Hydance is a company selling power products in China and Taiwan. Their ATX PSU portfolio consists of a small number of Seasonic power supplies, and the new low-power units will soon appear in their offer.

Model OEM Platform Power Efficiency +12V capacity
HD-250ST(F)
Seasonic ST 250W
80+ Bronze,
80+ Bronze 230V EU
20A
240W
HD-300ST(F) 300W 18A 18A
288W
HD-350ST(F) 350W 18A 18A
324W  
HD-430ST 430W 18A 18A
396W
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