550W Power Supplies
Browse 188 550W units with full specs and sorting.
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Showing 188 of 188 entries in 550W
Brand
Series
Wattages
Tier
Year
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ATX Ver.
Input
Modular
Eff.
Topology
ODM
Platform
↪ Notes: OCP is not claimed on any rail (although it most likely exists for the minor rails only), very low +12V line output relative to total capacity.
↪ Notes: Decent electrical performance, although some components are of questionable quality.
↪ Notes: 650W is technically rated Cybenetics Silver
↪ Notes: Pro and Pro RGB Modular are the same internally.
↪ Notes: 1000W model might be DC-DC, unable to confirm without a proper teardown
↪ Notes: 1000W model might be DC-DC, unable to confirm without a proper teardown
↪ Notes: 1000W model might be DC-DC, unable to confirm without a proper teardown
↪ Notes: 1000W model might be DC-DC, unable to confirm without a proper teardown
↪ Notes: Improperly set OCP allows for abysmal voltage drops past ATX spec.
↪ Notes: No transient response testing found.
↪ Notes: Cost-down SSR-FM platform. White 750W is available.
↪ Notes: Appears to be targeted primarily at the Eastern market.
Cuprum Strike (CSK) "DC"
DC-DC
XWY
A11 (HKC ATX-41B clone)
↪ Notes: DC-DC variant of the CSK Bronze; only 750W has 300W 12VHPWR.
↪ Notes: No inrush protection. Sold in the US as Earthwatts Green. 650W utilizes 105C secondary caps, 550W 85C.
Cuprum Strike (CSK) Bronze
GR
Hui Cheng
~Zalman Megamax V2
↪ Notes: Also known as CSK[w]H. Not printed on the logos.
↪ Notes: Most likely for the Asian market; sightings in China and India. Ketchup and mustard cables, different fan grille, label, and box.
↪ Notes: X8 might be a clone of CWT's GPK platform, but is similar to the M5 platform (not very good.)
↪ Notes: X8 might be a clone of CWT's GPK platform, but is similar to the M5 platform (not very good.)
↪ Notes: 650W has poor 3.3V transient response
↪ Notes: 2 year warranty. PSAZ Bronze w/ARGB fan. 540W, 648W, & 744W on 12V respectively.
↪ Notes: Cost-down full input new PSAZ Bronze w/ ARGB fan.
↪ Notes: 2 year warranty. 550W: 540W on 12V, 650W: 648W on 12V, 750W: 744W on 12V.
↪ Notes: Cost-down full input new PSAZ Bronze.
↪ Notes: 2 year warranty. PSAZ Bronze w/ARGB fan. 550W: 492W, 650W: 576W on 12V.
↪ Notes: Not to be confused with the downgraded non-modular Pure Power 12!
↪ Notes: 85C bulk caps, excellent noise profile.
↪ Notes: Low quality fan, 85C bulk cap.
↪ Notes: Looks exactly the same as the regular System Power 10 internally. Unless later testing proves the above issues are not present, detier to E.
↪ 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: Both EPS connectors share a cable, poor regulation and transient response on minor rails; only a 2 year warranty.
↪ Notes: Platform is somewhat mediocre, no direct transient response testing available and not the best choice of capacitors.
↪ Notes: "90% 230V only", claims meeting 80+ Gold without certifying. No direct transient response testing but platform is well reviewed.
↪ Notes: "85% 230V only", ketchup and mustard cables. Outdated and no official 80+ certification, only on the tier list since it's still on their website.
↪ Notes: "85% 230V only", ketchup and mustard cables. Outdated and no official 80+ certification, only on the tier list since it's still on their website.
↪ Notes: Fake 85% efficiency label, black on yellow label; it's also old. Not certain on topology but not recommendable regardless. See review here. No OCP.
↪ Notes: White model available, same internals.
V-Series
"Vanguard" Gold i Multi ("Digital")
DC-DC
Chicony
Custom
↪ Notes: "Semi-digital" - offers digital fan control and monitoring via MasterPlus software; actual components are analog.
↪ 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 Bronze 230V
DC-DC
Gospower
G1208 upd. to ATX 3.1
↪ Notes: Basically G1208 updated to ATX 3.1, no 12VHPWR.
↪ Notes: v2, 160mm long, doesn't have 1000W version; custom Corsair rifle bearing fan.
↪ Notes: Technically 80+ Silver without RGB on
↪ Notes: Gray label. Custom Corsair rifle bearing fan.
↪ Notes: Gray label. Custom Corsair rifle bearing fan.
↪ Notes: Grey label
↪ Notes: White "CX" lettering on black label; Identical to the CV aside from exterior design.
↪ Notes: Grey label; OCP doesn't work properly, allowing the voltages to fall out of spec, very poor ripple suppression on 5V, failed transient testing on 3.3V
↪ Notes: Platform is certified for Gold, might have only hit Bronze due to modular interface
↪ Notes: Can come in white variants. Protections need tuning. ATX 3.0 refresh of the PM-D.
↪ Notes: Low component quality, w/ highly set OCP/OPP & OOS 3.3V transient response. Not quite ATX 3.X by failing low load efficiency. 600W 12+2 cable.
↪ Notes: Good electrical performance for the category, decent component quality, protections are set reasonably.
↪ Notes: Supremo Gold made for semi-modularity, necessary protections aren't claimed.
↪ Notes: Supremo Gold made for non-modularity. No OCP to be found in testing nor claimed.
↪ Notes: Claims necessary protections but weren't evaluated in Aris' testing, OTP was kicked in during voltage regulation testing.
↪ Notes: 850W uses ARGB fan + housing and comes in black and white models. 3 year warranty.
↪ Notes: Decent electrical performance let down by poor transient response, a sleeve bearing fan, and other miscellaneous problems.
↪ Notes: Old but gold (no pun intended.)
↪ 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: High RMA rate due to MLCC cracks, similar to other HEC-built EVGA PSUs. Showed up on B-Stock in huge quantities for dirt cheap c. 2022.
↪ Notes: OCP on 12V doesnt exist. OPP is set too high. Sleeve bearing fan.
↪ Notes: Malfunctioning safety protections (OCP/OPP) allowing for OOS operation and catastrophic failure, 20AWG PCIe.
↪ Notes: Cost-down Ion Platinum.
↪ Notes: Fails EMI testing, 2 EPS connectors on one cable, minor rails are either failing or near failing with regards to transient response.
↪ Notes: Not enough conclusive data but platform is well reviewed.
↪ Notes: No performance data although the platform is decently reviewed.
↪ Notes: Malfunctioning OCP and OPP on +12V line (voltage out of spec), poor transient response on minor rails, failed to meet 80+ Gold rating.
↪ Notes: Doesn't claim necessary protections. No real 80+ certification label on the unit.
↪ Notes: Same design as the OEM HP1-J-GD-F12S with a rifle bearing fan.
↪ Notes: Actual +12V capacity is ~5-10% lower than advertised wattage.
↪ Notes: Low quality sleeve bearing fan, and only a 2 year manufacturer warranty.
↪ Notes: Platform confirmed through overhead and internal shots provided by the manufacturer.
↪ Notes: SI model, however it appears to be identical to the MP-B.
↪ Notes: OTP isn't claimed despite the fact that the supervisor IC might support it
↪ Notes: OTP isn't claimed despite the fact that the supervisor IC might support it, nearly identical internally to the original Gamma
↪ Notes: Semi-modular A-BN. See internal shots here.
↪ Notes: Components are variable based on batch.
↪ Notes: Components are variable based on batch.
↪ Notes: Single-rail. See review. Poor transient response on 3.3V, rifle bearing fan. OTP isn't claimed or tested, but is supported by the supervisor IC.
↪ Notes: 130mV+ of ripple on all rails (out of spec) at only 60% load; failed to meet even 80+ Bronze. See Rear Shot and Output Specification Label.
↪ Notes: Transient response on the 3.3V rail is either failing or near failing. Fan profile is quite aggressive.
↪ Notes: Still produced according to MC stock
↪ Notes: Low quality sleeve bearing fan, ripple exceeds ATX specification, low quality capacitors, and a 3 year warranty.
↪ Notes: Some units produced before 2018 may experience shutdowns with high transient draw GPUs.
↪ Notes: Some units produced before 2018 may experience shutdowns with high transient draw GPUs.
↪ Notes: Minor changes with a "V3" model released in 2019.
↪ Notes: White versions of Focus (yes) Gold / Platinum and Prime Titanium.
↪ Notes: Internal shots confirm a costdown Core GC/Focus
↪ Notes: Costdown of the G12 GC; cheaper components, all Chinese caps, and an even cheaper fan; downgraded to Bronze eff.
↪ Notes: GX but non-modular
↪ Notes: GX but semi-modular
↪ Notes: Sleeve bearing fan, 3.3V rail is subpar in transient testing, fan profile is aggressive and very loud when pushed. Source: Aris
↪ Notes: OTP isn't claimed, IC doesn't support it either
↪ Notes: Semi-modular version of the G12 GC (Global)
↪ Notes: Claims only SCP, OPP, and over/under voltage. OCP not claimed on any rail.
↪ Notes: Middling load regulation for the 3.3v & 5VSB rails, 5 year warranty.
↪ Notes: Good electrical performance let down by no inrush protection; bad power good signal.
↪ Notes: Protechnic Electric sleeve bearing fan.
↪ Notes: Hold-up time fails to meet the ATX minimum specification.
↪ Notes: Pro version - black casing instead of white. Pigtail PCIe cables for the 650W. Cost down version of the Pro ARGB.
↪ Notes: Poorly tuned OCP & OPP, 20AWG pigtails on PCIe connectors. 750/850w has a dual 8 pin to 600W 12VHPWR cable available for purchase.
↪ Notes: Chinese caps, 20AWG gauges on the EPS/PCIe cables; 5VSB regulation doesn't quite hit A tier specifications.
↪ Notes: No transient response testing found.
Leadex III Super Bronze Pro
DC-DC
Super Flower
Leadex III Bronze (EVGA B3)
↪ Notes: Limited information.
↪ Notes: Leadex II costdown, single-layer PCB. Sleeve bearing fan. Capacitors aren't of the highest quality.
↪ Notes: No OTP and OCP (12V) present; low hold-up time (out of spec); poor soldering quality.
↪ Notes: Sleeve-bearing fan. OCP untested.
↪ 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: Missing crucial safety protections, very old platform and very poor build quality.
↪ Notes: Poor electrical performance from an unknown OEM; fails all 12V transient response testing per F14 Lab's testing.
↪ Notes: Does not claim certain safety protection circuits which is a major deficiency.