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Cooler Master MWE Gold 850 V2 Full Modular

Cooler MasterPower supply

MWE Gold 850 V2 Full Modular

Released October 2020.3Owner's manualcoolermaster.egnyte.com/dl/f0fHRjTaQJRead 14 October 2026The user guide is dated 2020/09 and the product sheet PDF was created on 2020-10-20. Cybenetics received its first sample on Dec 14, 2020. No launch announcement was found, so October 2020 is an estimate. Last checked 14 October 2026.

Power
850W
Efficiency
80 PLUS Gold
Modular cables
Fully modular
ATX version
ATX 2.x

48 of 66 fields known.

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At a glance

  • SATA power connectors

    12

    Higher than 84% of other power supplies.

All specs

SourceCalculated

General

Series
MWE Gold1Maker product pagecoolermaster.com/en-us/products/mwe-gold-850-v2-full-modular.htmlRead 14 October 2026Specifications: Series MWE Gold Series.
Model numbers
MPE-8501-AFAAG, MPE-8501-AFAAG-US, MPE-8501-AFAAG-EU1Maker product pagecoolermaster.com/en-us/products/mwe-gold-850-v2-full-modular.htmlRead 14 October 2026Specifications: Model MPE-8501-AFAAG. The US store data carries the SKU MPE-8501-AFAAG-US. Retailers list the EU code MPE-8501-AFAAG-EU.6Retailer pageamazon.com/dp/B08M9M6DB9Read 14 October 2026Item details: Model Number and Mfr Part Number MPE-8501-AFAAG-US.
GTIN / EAN
884102078590, 4719512106280, 884102078620, 47195121063102Maker spec sheet (PDF)coolermaster.egnyte.com/dl/jm4eNcQGZ8Read 14 October 2026Package Information table: EAN and UPC per cable type. US 4719512106280 and 884102078590, EU 4719512106310 and 884102078620. The sheet lists 11 cable types in all. Only the US and EU rows are stored.6Retailer pageamazon.com/dp/B08M9M6DB9Read 14 October 2026Item details: UPC 884102078590, GTIN 00884102078590. The code has a valid check digit and matches the product sheet's US row.
Announced
Not available
Status
Available1Maker product pagecoolermaster.com/en-us/products/mwe-gold-850-v2-full-modular.htmlRead 14 October 2026US store page shows In Stock at 99.99 USD on 2026-10-14. Amazon US also lists the -US model.6Retailer pageamazon.com/dp/B08M9M6DB9Read 14 October 2026Amazon US listing for MPE-8501-AFAAG-US with 2,157 ratings at 4.5 stars and best sellers rank 80 in Computer Power Supplies in October 2026.
Predecessor
Not available
Successor
Not available
Launch price (US)
Not available
Launch price (EU)
Not available
Markets
Not available
Colours
Not available
Form factor
ATX1Maker product pagecoolermaster.com/en-us/products/mwe-gold-850-v2-full-modular.htmlRead 14 October 2026Specifications: Form Factor ATX.2Maker spec sheet (PDF)coolermaster.egnyte.com/dl/jm4eNcQGZ8Read 14 October 2026
ATX version
ATX 2.x1Maker product pagecoolermaster.com/en-us/products/mwe-gold-850-v2-full-modular.htmlRead 14 October 2026Specifications: ATX Version ATX 12V Ver. 2.41. This is the original V2 and not the ATX 3.x refresh.2Maker spec sheet (PDF)coolermaster.egnyte.com/dl/jm4eNcQGZ8Read 14 October 2026Specifications: ATX Version ATX 12V Ver. 2.41.
PCIe CEM version
Not available
Modular cables
Fully modular1Maker product pagecoolermaster.com/en-us/products/mwe-gold-850-v2-full-modular.htmlRead 14 October 2026Specifications: Modular Fully Modular.2Maker spec sheet (PDF)coolermaster.egnyte.com/dl/jm4eNcQGZ8Read 14 October 2026
Built by (OEM)
Huizhou Xin Hui Yuan Tech (Fusion Power)4Measurementcybenetics.com/evaluations/psus/2259Read 14 October 2026DUT Information: OEM/ODM Huizhou Xin Hui Yuan Tech (Fusion Power).

Power

Rated continuous power
850W1Maker product pagecoolermaster.com/en-us/products/mwe-gold-850-v2-full-modular.htmlRead 14 October 2026Specifications: Watts 850W.2Maker spec sheet (PDF)coolermaster.egnyte.com/dl/jm4eNcQGZ8Read 14 October 2026DC output table: total power 850W. The sheet prints Noise at 20, 50 and 100 percent load and efficiency of 90 percent at typical load. Those maker figures are not stored.
Full power rated up to
Not available
12V rail design
Single rail4Measurementcybenetics.com/evaluations/psus/2259Read 14 October 2026Power Specifications: one +12V column with 70.8A. The sheet also prints one +12V column.
+12V max current
70.8A2Maker spec sheet (PDF)coolermaster.egnyte.com/dl/jm4eNcQGZ8Read 14 October 2026DC output table: +12V 70.8A with 849.6W. The sheet prints +3.3V 20A, +5V 20A, -12V 0.3A and +5Vstb 3A.
+12V max power
849.6W2Maker spec sheet (PDF)coolermaster.egnyte.com/dl/jm4eNcQGZ8Read 14 October 2026DC output table: +12V 849.6W. Total power 850W.
+3.3V and +5V combined power
100W2Maker spec sheet (PDF)coolermaster.egnyte.com/dl/jm4eNcQGZ8Read 14 October 2026DC output table: 100W for +3.3V and +5V together.
+5V standby current
3A2Maker spec sheet (PDF)coolermaster.egnyte.com/dl/jm4eNcQGZ8Read 14 October 2026DC output table: +5Vstb 3A, 15W.
AC input voltage
Lowest100Highest240V1Maker product pagecoolermaster.com/en-us/products/mwe-gold-850-v2-full-modular.htmlRead 14 October 2026Specifications: Input Voltage 100-240V, Input Current 12-6A, Input Frequency 50-60Hz.2Maker spec sheet (PDF)coolermaster.egnyte.com/dl/jm4eNcQGZ8Read 14 October 2026AC input 100-240V~ 12-6A 50-60Hz.
Alternative low power mode (ALPM)
Yes4Measurementcybenetics.com/evaluations/psus/2259Read 14 October 2026Temperature and Compliance Info: ALPM (Alternative Low Power Mode) compatible, checked.

Certifications

80 PLUS rating
80 PLUS Gold5Certification listclearesult.com/80plus/certified-psus/Cooler-Master/MPE-8501-AFAAG-115V-Internal-20951Read 14 October 202680 PLUS ID 20951, model MPE-8501-AFAAG, ATX12V, 850 W, 115V Internal, Gold, test date 2020-03-18, rated input 12-6 A, which matches the sheet. The certificate lists no sample serial. The maker also says 80 PLUS Gold.
Cybenetics efficiency at 115V
Cybenetics Gold4Measurementcybenetics.com/evaluations/psus/2259Read 14 October 2026Report 23PS2259A, certification ID 252259, issued Oct 13, 2023. It is named MWE Gold 850 V2 (GX Gold 750) (#2), which is a second sample of the fully modular 850W unit: rated 850 W, fully modular, 12-6 A. An earlier report, 20PS1769A issued Dec 22, 2020 and named MWE Gold 850 V2 (GX Gold 850), also rates Gold at both voltages. The newer report is stored. The database list prints Gold at 115V and 230V for both reports.
Cybenetics efficiency at 230V
Cybenetics Gold4Measurementcybenetics.com/evaluations/psus/2259Read 14 October 2026The ETA badge shows Gold at 230V, as the database list prints.
Cybenetics noise at 115V
Standard++4Measurementcybenetics.com/evaluations/psus/2259Read 14 October 2026The LAMBDA badge shows Standard++ at 115V, with 31.66 dBA average noise. The 2020 report shows Standard+ at 115V with 35.18 dBA. Amazon US prints Cybenetics Gold and Noise Standard+ in its title.
Cybenetics noise at 230V
Standard++4Measurementcybenetics.com/evaluations/psus/2259Read 14 October 2026The LAMBDA badge shows Standard++ at 230V, with 31.75 dBA average noise. The 2020 report shows Standard++ with 34.18 dBA.

Measured

Average efficiency at 115V (measured)
88.338%4Measurementcybenetics.com/evaluations/psus/2259Read 14 October 2026Average over more than 1450 load combinations at 115V. Sample received Sep 27, 2023, tested Oct 12, 2023, no serial number printed. Ambient 28-32 C. The 2020 report prints 88.571.
Average efficiency at 230V (measured)
90.459%4Measurementcybenetics.com/evaluations/psus/2259Read 14 October 2026Average over more than 1450 load combinations at 230V. The 2020 report prints 90.720.
Light-load efficiency at 115V (measured)
64.654%4Measurementcybenetics.com/evaluations/psus/2259Read 14 October 2026Efficiency at 2% load (more than 500 W unit) at 115V. The 2020 report prints 63.292.
Average power factor at 115V (measured)
0.9894Measurementcybenetics.com/evaluations/psus/2259Read 14 October 2026Average over more than 1450 load combinations at 115V. At 230V it is 0.954.
Average noise at 115V (measured)
31.66dB(A)4Measurementcybenetics.com/evaluations/psus/2259Read 14 October 2026Average over more than 1450 load combinations at 115V, ambient 28-32 C, Bruel and Kjaer sound analyzer. The 230V average is 31.75 dBA.
Noise at full load at 115V (measured)
44.5dB(A)4Measurementcybenetics.com/evaluations/psus/2259Read 14 October 2026Typical load tests at 115V, 100% load row: 44.5 dB(A) at 2135 rpm fan speed, ambient about 30 C. The 2020 report prints 43.3 dB(A) at 2056 rpm for its 100% load test.
Standby power with no load at 115V (measured)
0.0585W4Measurementcybenetics.com/evaluations/psus/2259Read 14 October 2026Standby power consumption at 115V with no load on +5VSB: 0.0585 W. At 230V it is 0.1320 W. The 2020 report prints 0.0650 W.
Hold-up time (measured)
22.4ms4Measurementcybenetics.com/evaluations/psus/2259Read 14 October 2026Hold-Up Time and PWR_OK Signal: hold-up time 22.40 ms, AC loss to PWR_OK 19.50 ms, PWR_OK inactive to DC loss 2.90 ms, at maximum continuous load. The report names no input voltage. The 2020 report prints 20.6 ms. The maker prints more than 16 ms at 100% load.
12V ripple at full load (measured)
29.21mV4Measurementcybenetics.com/evaluations/psus/2259Read 14 October 2026Non-accredited measurement. 12V ripple at full load at 115V. At 230V it is 30.79 mV. The 2020 report prints 28.25 mV.
12V load regulation (measured)
0.25%4Measurementcybenetics.com/evaluations/psus/2259Read 14 October 2026Non-accredited measurement. 12V load regulation at 115V. At 230V it is 0.26%. The 2020 report prints 0.28%.

Cables and connectors

Cables
ConnectorConnectorsCablesLength to first plug (mm)Wire gauge
ATX 24-pin (20+4)1160018AWG
CPU 8-pin (EPS, 4+4)1161018AWG
CPU 8-pin (EPS, 4+4)1166018AWG
PCIe 8-pin (6+2)4256016-18AWG
SATA power12351018AWG
4-pin Molex4150018AWG
Source2Maker spec sheet (PDF)coolermaster.egnyte.com/dl/jm4eNcQGZ8Read 14 October 2026Connectors: ATX 24 pin x1, EPS 4+4 pin x1, EPS 8 pin x1, SATA x12, Peripheral 4 pin x4, PCI-e 6+2 pin x4. The sheet gives no cable counts, lengths or gauge. Those come from the Cybenetics cable table, which has the same connector counts.4Measurementcybenetics.com/evaluations/psus/2259Read 14 October 2026Cables and Connectors table: ATX 20+4 pin 600 mm 18AWG, 4+4 pin EPS 610 mm 18AWG, 8 pin EPS 660 mm 18AWG, two 6+2 pin PCIe cables with 4 plugs (560 mm then 125 mm) 16-18AWG, three SATA cables with 12 plugs (510 mm then 3 x 120 mm) 18AWG, one 4-pin Molex cable with 4 plugs (500 mm then 3 x 120 mm) 18AWG. The 2020 report has slightly different lengths and gauges, such as an ATX cable of 610 mm at 18-22AWG. The sheet's connector counts match both.
CPU (EPS) connectors
2
PCIe 8-pin connectors
4
16-pin GPU connectors
0
SATA power connectors
12
4-pin Molex connectors
4
Cable style
Flat1Maker product pagecoolermaster.com/en-us/products/mwe-gold-850-v2-full-modular.htmlRead 14 October 2026Full Modular Cabling: a set of flat black cables.2Maker spec sheet (PDF)coolermaster.egnyte.com/dl/jm4eNcQGZ8Read 14 October 2026Features: full modular flat, black cables.

Fan

Fan size
120mm1Maker product pagecoolermaster.com/en-us/products/mwe-gold-850-v2-full-modular.htmlRead 14 October 2026Specifications: Fan Size 120mm. Fan Speed 1500 RPM.2Maker spec sheet (PDF)coolermaster.egnyte.com/dl/jm4eNcQGZ8Read 14 October 2026Specifications: Fan Size 120mm, Fan Speed 1500 RPM.
Fan bearing
Hydrodynamic (HDB)1Maker product pagecoolermaster.com/en-us/products/mwe-gold-850-v2-full-modular.htmlRead 14 October 2026Specifications: Fan Bearing HDB. The page calls it a 120mm HDB fan with a Hydro Dynamic bearing. The Cybenetics report calls the Hong Hua HA1225H12F-Z an FDB fan.2Maker spec sheet (PDF)coolermaster.egnyte.com/dl/jm4eNcQGZ8Read 14 October 2026Specifications: Fan Bearing HDB. Features: 120mm Hydro Dynamic Fan bearing.
Fan mode
Not available
Fan mode switch
Not available

Protection and parts

Protections
Over-voltage (OVP), Over-power (OPP), Over-temperature (OTP), Short-circuit (SCP), Over-current (OCP), Under-voltage (UVP)1Maker product pagecoolermaster.com/en-us/products/mwe-gold-850-v2-full-modular.htmlRead 14 October 2026Specifications: Protections UVP / OVP / OPP / OTP / SCP / OCP.2Maker spec sheet (PDF)coolermaster.egnyte.com/dl/jm4eNcQGZ8Read 14 October 2026Specifications: Protections OVP / OPP / OTP / SCP / OCP / UVP.
All-Japanese capacitors
Not available
MTBF (claimed)
100,000h1Maker product pagecoolermaster.com/en-us/products/mwe-gold-850-v2-full-modular.htmlRead 14 October 2026Specifications: MTBF >100,000 Hours. The figure is a minimum and the test temperature is not stated.2Maker spec sheet (PDF)coolermaster.egnyte.com/dl/jm4eNcQGZ8Read 14 October 2026Specifications: MTBF >100,000 hours.

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)1Maker product pagecoolermaster.com/en-us/products/mwe-gold-850-v2-full-modular.htmlRead 14 October 2026Specifications: Dimensions (L x W x H) 160 x 150 x 86 mm. Depth 160, width 150, height 86.2Maker spec sheet (PDF)coolermaster.egnyte.com/dl/jm4eNcQGZ8Read 14 October 2026Specifications: Dimensions (L x W x H) 160 x 150 x 86mm. The sheet prints a net weight of 2.17 kg. It sits under package information and probably counts the cables, so it is not stored.
Weight
Not available

In the box

In the box
MWE850, Power Cord, 4 Screws, Connectors and Manual6Retailer pageamazon.com/dp/B08M9M6DB9Read 14 October 2026Item details: Built-In Media MWE850, Power Cord, 4 Screws, Connectors and Manual. It is the retailer's line for the US model. The AC power cord differs per region.

Warranty

Manufacturer warranty (source market)
5years1Maker product pagecoolermaster.com/en-us/products/mwe-gold-850-v2-full-modular.htmlRead 14 October 2026Page: 5 year manufacturing warranty from the date of purchase. The US page names no market for the warranty.2Maker spec sheet (PDF)coolermaster.egnyte.com/dl/jm4eNcQGZ8Read 14 October 2026Features: 5 year factory warranty from purchase date.3Owner's manualcoolermaster.egnyte.com/dl/f0fHRjTaQJRead 14 October 2026Warranty section: a minimum 5-year hardware limited warranty from the date of purchase.6Retailer pageamazon.com/dp/B08M9M6DB9Read 14 October 2026Item details: Warranty Description 5 year manufacturer.

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Variants

Each variant lists only what differs from the specs above.

Model numberGTIN
MPE-8501-AFAAG-US884102078590
MPE-8501-AFAAG-EU4719512106310

Sources

We read 6 sources for this power supply. The numbers match the markers in the sheet.

  1. Read 14 October 2026Backs 17 fields
  2. Read 14 October 2026Backs 19 fields
  3. Read 14 October 2026Backs 3 fields
  4. Read 14 October 2026Backs 18 fields
  5. Read 14 October 2026Backs 1 field
  6. Read 14 October 2026Backs 5 fields

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