Tier B Power Supplies
Browse 85 tier B units with full specs and sorting.
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Showing 85 of 85 entries in Tier B
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ATX Ver.
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Modular
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↪ Notes: Despite markings on the DC-DC daughterboard indicating CWT GPU, internal shots confirm CWT GPX.
↪ Notes: Mid quality fan; Same Martech "FDB" fan on the MSI A-GL series.
↪ Notes: Mediocre transient response and low quality caps.
↪ Notes: Custom be quiet! rifle bearing fan.
↪ Notes: A few samples of the base platform died when subjected to sub-90VAC stress tests per JonnyGuru. Proceed with caution under 120VAC, especially in areas prone to brownouts.
↪ Notes: Platform is essentially a modified MWE Bronze V3.
MWE V3 ATX 3.1 Bronze -
DC-DC
Gospower
G1208 upd. to ATX 3.1
↪ Notes: Basically G1208 updated to ATX 3.1
MWE V3 ATX 3.1 Gold Non-Mod.
DC-DC
Gospower
G1208 mod. upd. to ATX 3.1
↪ Notes: Modified MWE Bronze V3, same as G Gold V2.
MWE V3 ATX 3.1 Gold Non-Mod.
DC-DC
Gospower
G1208 mod. upd. to ATX 3.1
↪ Notes: Modified MWE Bronze V3, same as G Gold V2.
↪ Notes: Black "CX" lettering on gray label; Double-sourced between GW & CWT; technically qualified for 80+ Silver but badged as Bronze.
CX
(Non-Modular) 2016 (Gray Label)
DC-DC
Great Wall
modified GW-ATXBL
↪ Notes: Black "CX" lettering on gray label; Double-sourced between GW & CWT; technically qualified for 80+ Silver but badged as Bronze.
↪ Notes: Technically 80+ Silver without RGB on
↪ Notes: Gray label; toggleable per-cable OCP.
↪ Notes: Black label; China only
↪ Notes: The OCP triggering points are set too high on the minor rails, 5VSB regulation exceeds 5% at 5.37%, filtering capacitors are of questionable quality.
↪ Notes: One review had 12V line voltage deviating slightly more than the limit in the 160% ATX 3.1 excursion test. OCP, OPP, and OVP are set too high on all rails.
↪ Notes: >50mV ripple suppression on 12V.
↪ Notes: Can come in white variants. Mediocre fan, no SCP on -12V rail, which isn't used in modern PCs. Avoid if using very old hardware.
↪ Notes: Transient response doesn't quite make it A tier, no direct protections testing.
↪ Notes: Limited testing; rating could be higher once additional testing exists.
↪ Notes: Decent overall performance despite being ACRF on the primary side, double ball bearing fan.
↪ Notes: Double ball bearing fan and good build quality, but protections need tuning. Low overall performance.
↪ Notes: See notes under Series name for how to identify each version.
↪ Notes: Decent overall performance despite being ACRF on the primary side, FDB fan instead of DBB as in the lower wattage GM models.
↪ Notes: PWR_OK signal testing failed; mediocre load regulation and transient response on the minor rails.
↪ Notes: Only included on the list because Enermax is still selling this unit on their Refurbished store and on Jawa as of 2025. Listed as "G-MA-B."
↪ Notes: Doesn't see the same problem as the 850W variant because of its lower capacity.
↪ Notes: Solid electrical performance, let down by poorly tuned protections, mediocre transient response, and a low quality fan.
↪ Notes: Globe Fan FDB fan. Assumed to be quite noisy (>48dBA) based on other units on the same platform. OPP is set way higher than necessary.
↪ Notes: Very high ripple on the 12V rail for a unit of this caliber.
↪ Notes: SX-G upgraded to Platinum efficiency.
↪ Notes: No transient response testing found.
Leadex III Super Bronze Pro
DC-DC
Super Flower
Leadex III Bronze (EVGA B3)
↪ Notes: Limited information.
↪ Notes: Semi-modular/costdown Combat FG. Does not seemingly suffer the same SCP issue with the FG.
↪ Notes: 550W tested, 550/650W TGFX ATX 3.0 compliant but no 12VHPWR/12V-2x6. Mediocre ripple & poor inrush current. Cybenetics Platinum/Gold.
↪ Notes: Europe, India and Japan model.
↪ Notes: Be wary of 2024 OEM/Platform change in the N.A. market!
↪ Notes: Be wary of 2024 OEM/Platform change in the N.A. market!
↪ Notes: The OCP and OPP triggering points are set much higher than necessary.