PC parts / Power supplies
Cooler MasterPower supply
MWE Gold 850 V3
Released June 2024.3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026Report issued Jun 18, 2024, sample received May 29, 2024, for GX II 850 GOLD (MWE Gold 850 V3). This is the earliest dated evidence for the unit. Tom's Hardware reviewed it on 2025-03-08. The maker names no launch date, so the month is approximate. Last checked 15 October 2026.
- Power
- 850W
- Efficiency
- 80 PLUS Gold
- Modular cables
- Fully modular
- ATX version
- ATX 3.1
50 of 66 fields known.
General
- Model numbers
- MPX-8503-AFAG-2BUV, MPX-8503-AFAG-2EBEU1Maker product pagecoolermaster.com/en-us/products/mwe-gold-850-v3.htmlRead 15 October 2026Specification table: Model 850: MPX-8503-AFAG-2***. The Amazon US listing gives the full code MPX-8503-AFAG-2BUV.6Retailer pageamazon.com/Cooler-Master-Efficiency-Zero-RPM-Hexagonal/dp/B0D68VH8DRRead 15 October 2026US listing, ASIN B0D68VH8DR: Model Number and Mfr Part Number MPX-8503-AFAG-2BUV.7Retailer pageldlc.com/en/product/PB00697440.htmlRead 15 October 2026Listing model MPX-8503-AFAG-2EBEU. Arvutitark and heise.de list the same code for the GX II Gold 850W ATX 3.1.
- GTIN / EAN
- 8841021192556Retailer pageamazon.com/Cooler-Master-Efficiency-Zero-RPM-Hexagonal/dp/B0D68VH8DRRead 15 October 2026UPC 884102119255 belongs to the US model MPX-8503-AFAG-2BUV.
- Announced
- Not available
- Predecessor
- Not available
- Successor
- Not available
- Launch price (US)
- Not available
- Launch price (EU)
- Not available
- Markets
- Not available
- Colours
- Black7Retailer pageldlc.com/en/product/PB00697440.htmlRead 15 October 2026Colour Black. Heise.de prints Schwarz.
- PCIe CEM version
- PCIe 5.12Maker product pagecoolermaster.com/en-global/products/mwe-gold-850-v3-atx-3-1.htmlRead 15 October 2026Feature text: a 90-degree 12+4pin (12V-2x6) PCIe 5.1 connector. Amazon US titles it PCIe 5.1 Ready.6Retailer pageamazon.com/Cooler-Master-Efficiency-Zero-RPM-Hexagonal/dp/B0D68VH8DRRead 15 October 2026Listing title: PCIe 5.1 Ready, ATX 3.1, 12V-2x6 cable.
- Modular cables
- Fully modular2Maker product pagecoolermaster.com/en-global/products/mwe-gold-850-v3-atx-3-1.htmlRead 15 October 2026Specification table: Modular Fully Modular.
- Built by (OEM)
- Lite-On3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026DUT Information: OEM/ODM Lite-on. Tom's Hardware also names LITEON.5Reviewtomshardware.com/pc-components/power-supplies/cooler-master-mwe-gold-850-v3-power-supply-reviewRead 15 October 2026Internal Design: the OEM is LITEON.
Power
- Rated continuous power
- 850W2Maker product pagecoolermaster.com/en-global/products/mwe-gold-850-v3-atx-3-1.htmlRead 15 October 2026Specification table: Watts 850W.
- Full power rated up to
- Not available
- 12V rail design
- Single rail5Reviewtomshardware.com/pc-components/power-supplies/cooler-master-mwe-gold-850-v3-power-supply-reviewRead 15 October 2026Power Specifications table: one +12V column, 70.8 A.
- +12V max current
- 70.8A2Maker product pagecoolermaster.com/en-global/products/mwe-gold-850-v3-atx-3-1.htmlRead 15 October 2026The page prints no rail table. The label photo in the product gallery (model MPX-8503-AFAG) prints +12V 70.8 A and 849.6 W. The Cybenetics power table has the same values.3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026Power Specifications: +12V 70.8 A, 849.6 W.
- +12V max power
- 849.6W2Maker product pagecoolermaster.com/en-global/products/mwe-gold-850-v3-atx-3-1.htmlRead 15 October 2026Gallery label photo: +12V 849.6 W. Tom's Hardware rounds it to 850 W.3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026Power Specifications: +12V 849.6 W.
- +3.3V and +5V combined power
- 120W2Maker product pagecoolermaster.com/en-global/products/mwe-gold-850-v3-atx-3-1.htmlRead 15 October 2026Gallery label photo: +5V 20 A and +3.3V 20 A with one 120 W cell for both rails.3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026Power Specifications: 3.3V and 5V 20 A each, one 120 W cell for both rails.
- +5V standby current
- 3A2Maker product pagecoolermaster.com/en-global/products/mwe-gold-850-v3-atx-3-1.htmlRead 15 October 2026Gallery label photo: +5VSB 3 A, 15 W.3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026Power Specifications: 5VSB 3 A, 15 W.
Certifications
- Cybenetics efficiency at 115V
- Cybenetics Platinum3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026Report 24PS2478A, certification ID 252478, issued Jun 18, 2024. The report names the unit GX II 850 GOLD (MWE Gold 850 V3) and notes Also sold as: MWE Gold 850 V3. The sample serial PS58513CD2312020014A1GZ has a Dec 2023 date code and its label reads model MPX-8503-AFAG. ETA Platinum badge at 115V. heise.de also ties this report to MPX-8503-AFAG-2EBEU.
- Cybenetics efficiency at 230V
- Cybenetics Platinum3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026ETA Platinum badge at 230V.
- Cybenetics noise at 115V
- A3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026LAMBDA A badge at 115V.
- Cybenetics noise at 230V
- A+3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026LAMBDA A+ badge at 230V.
Measured
- Average efficiency at 115V (measured)
- 89.579%3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026Average over more than 1450 load combinations at 115V. Tested Jun 17, 2024, ambient 28-32 C.
- Average efficiency at 230V (measured)
- 91.725%3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026Average over more than 1450 load combinations at 230V.
- Light-load efficiency at 115V (measured)
- 82.48%3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026Efficiency at 2% load at 115V. The unit is above 500 W, so the 2% load applies.
- Average power factor at 115V (measured)
- 0.9923Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026Average over more than 1450 load combinations at 115V. At 230V it is 0.981.
- Average noise at 115V (measured)
- 22.87dB(A)3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026Average over more than 1450 load combinations at 115V, ambient 28-32 C, Bruel and Kjaer 2270 G4 sound analyzer. The 230V average is 18.91 dBA.
- Noise at full load at 115V (measured)
- 49.1dB(A)3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026Typical load tests at 115V, 100% load row: 49.1 dB(A) at 2868 rpm fan speed, intake 45.51 C and exhaust 53.59 C.
- Standby power with no load at 115V (measured)
- 0.068W3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026Standby power consumption at 115V with no load on +5VSB: 0.0680 W. At 230V it is 0.1253 W.
- Hold-up time (measured)
- 20.9ms3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026Hold-Up Time and PWR_OK Signal: hold-up time 20.9 ms, AC loss to PWR_OK 18.2 ms, at maximum continuous load. The maker claims at least 16 ms at 80% load.
- 12V ripple at full load (measured)
- 58.45mV3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026Non-accredited. 12V ripple at full load at 115V. At 230V it is 56.06 mV. Tom's Hardware measured 52 mV at 100% load.
- 12V load regulation (measured)
- 0.81%3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026Non-accredited. 12V load regulation at 115V. At 230V it is 0.75%.
Cables and connectors
- Cables
Connector Connectors Cables Length to first plug (mm) Wire gauge Rated power (W) ATX 24-pin (20+4) 1 1 605 18-22AWG Not available CPU 8-pin (EPS, 4+4) 2 2 600 18AWG Not available PCIe 8-pin (6+2) 4 Not available Not available Not available Not available 12V-2x6 1 1 650 16AWG 600 SATA power 6 Not available Not available Not available Not available 4-pin Molex 2 Not available Not available Not available Not available Source2Maker product pagecoolermaster.com/en-global/products/mwe-gold-850-v3-atx-3-1.htmlRead 15 October 2026Specification table: ATX 24 pin 1, EPS 4+4 pin 1, EPS 8 pin 1, SATA 6, peripheral 4 pin 2, PCI-e 6+2 pin 4, 12V-2x6 1. Tom's Hardware and LDLC list the same counts. The maker gives no lengths or cable counts. Lengths and gauge of the ATX, EPS and 12V-2x6 cables come from the Cybenetics report. The report sample has a different bundle for PCIe, SATA and Molex, so those rows carry the maker counts only.3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026Cables and Connectors table: ATX 20+4 pin 605 mm 18-22AWG, 4+4 pin EPS and 8 pin EPS 600 mm 18AWG each, 12+4 pin PCIe 650 mm (600W) 16-28AWG, three single 6+2 pin PCIe cables 550 mm, two SATA cables with 8 plugs and one Molex cable with 4 plugs. The 16-28AWG range of the 12V-2x6 cable includes the thin sideband wires, so the stored gauge is the 16AWG power wire. The PCIe, SATA and Molex counts differ from the maker's table, so only the maker counts are stored for those rows. heise.de prints a 450 W rating for the 12V-2x6 cable, the report and the Amazon US listing say 600 W.5Reviewtomshardware.com/pc-components/power-supplies/cooler-master-mwe-gold-850-v3-power-supply-reviewRead 15 October 2026Connector table, all modular: ATX 24 pin 1, EPS 4+4 pin 1, EPS 8 pin 1, PCI-E 8 pin 4, 12V-2x6 1, SATA 6, Molex 2.7Retailer pageldlc.com/en/product/PB00697440.htmlRead 15 October 2026Connectors: 1 ATX 24 pin, 4 PCI Express 6+2 pin, 1 16-pin 12V-2x6, 6 SATA, 2 Molex. This matches the maker's table.- CPU (EPS) connectors
- 2
- PCIe 8-pin connectors
- 4
- 16-pin GPU connectors
- 1
- SATA power connectors
- 6
- 4-pin Molex connectors
- 2
Fan
Protection and parts
- Protections
- Over-current (OCP), Over-voltage (OVP), Under-voltage (UVP), Over-power (OPP), Over-temperature (OTP), Short-circuit (SCP), No-load (NLO), Surge and inrush (SIP)2Maker product pagecoolermaster.com/en-global/products/mwe-gold-850-v3-atx-3-1.htmlRead 15 October 2026Specification table: OPP / OVP / OTP / OCP / SCP / UVP / Surge & Inrush Protection. NLO is added from the Cybenetics protection tests. The Cybenetics OTP test did not shut the unit down, the maker's OTP claim is stored.3Measurementcybenetics.com/evaluations/psus/2478Read 15 October 2026Protection tests: NLO passed, SCP passed on all rails, surge by MOV and inrush by NTC and relay. The report has no UVP row. OTP shows Didn't shut down. Fan failure protection is missing.
- All-Japanese capacitors
- Not available
Monitoring and lighting
We could not find any of these 4 fields. Show them
- Software monitoring
- Not available
- Software
- Not available
- Built-in power display
- Not available
- RGB lighting
- Not available
Dimensions and weight
Front and side, drawn to scale.
- Dimensions
- Width150Height86Depth160mm(5.9 × 3.4 × 6.3 in)2Maker product pagecoolermaster.com/en-global/products/mwe-gold-850-v3-atx-3-1.htmlRead 15 October 2026Specification table: Dimensions (L x W x H) 160 x 150 x 86 mm, so depth 160, width 150, height 86.
- Weight
- Not available
In the box
Links
- Product page
- www.coolermaster.com/en-us/products/mwe-gold-850-v3.html1Maker product pagecoolermaster.com/en-us/products/mwe-gold-850-v3.htmlRead 15 October 2026US store page for the MWE Gold 850 V3. It lists 750 W and 850 W options. Its specification table matches the global page.
- Spec sheet
- Not available
- Manual
- Not available
- EPREL registration number
- Not available
Warranty
- Manufacturer warranty (source market)
- 10years2Maker product pagecoolermaster.com/en-global/products/mwe-gold-850-v3-atx-3-1.htmlRead 15 October 2026Feature list: 10-year warranty. The page names no market.
Compare with
Pick a power supply to see both side by side. Differences are marked yellow.
Variants
Each variant lists only what differs from the specs above.
| Model number | GTIN | Markets |
|---|---|---|
| MPX-8503-AFAG-2BUV | 884102119255 | US |
| MPX-8503-AFAG-2EBEU | Not available | EU |
Sources
We read 7 sources for this power supply. The numbers match the markers in the sheet.
- Maker product pagecoolermaster.com/en-us/products/mwe-gold-850-v3.html
- Maker product pagecoolermaster.com/en-global/products/mwe-gold-850-v3-atx-3-1.html
- Measurementcybenetics.com/evaluations/psus/2478
- Retailer pageldlc.com/en/product/PB00697440.html
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