Power supplies / Compare

ASRock PRO-850G vs MSI MAG A850GLS PCIE5

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Product A: ASRock

PRO-850G

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B

Product B: MSI

MAG A850GLS PCIE5

50 of 66 known

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Only differences

AASRock PRO-850G

BMSI MAG A850GLS PCIE5

General

5 of 12 differ

Series

PRO2Maker product pageweb.archive.org/web/20250919085843/https://asrock.com/Power-Supply/PRO/PRO-850G/index.aspRead 14 October 2026Listed under ASRock Power Supply, PRO series.

MAG A-GLS3Press articlekitguru.net/components/power-supplies/joao-silva/msi-introduces-new-mag-a-gls-atx-3-1-psusRead 14 October 2026KitGuru calls the lineup the MAG A-GLS PCIE5 series (A1000GLS, A850GLS, A750GLS, A650GLS).

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

PRO-850G, 90-UXR085-GNUAA2, 90-UXR085-GNEAA26Retailer pageamazon.com/dp/B0FSTHTLZTRead 14 October 2026Amazon US lists model number 90-UXR085-GNUAA2 and manufacturer part PRO-850G. Paradigit and Grosbill list 90-UXR085-GNEAA2 for the EU unit.7Retailer pageparadigit.ie/asrock-pro-850g-850-w/21845961/productRead 14 October 2026Product number manufacturer 90-UXR085-GNEAA2.

MAG A850GLS PCIE5, 306-7ZPIY11-CE01Maker spec sheet (PDF)storage-asset.msi.com/datasheet/power-supply/us/MAG-A850GLS-PCIE5.pdfRead 14 October 2026Datasheet title MAG A850GLS PCIE5.2Maker product pagede-store.msi.com/products/mag-a850gls-pcie5Read 14 October 2026MSI e-shop Germany: order code 306-7ZPIY11-CE0.

GTIN / EAN

47115814914418Retailer pageshop.post.ch/en/electronics/pc-components/power-supply-units/asrock-power-supply-pro-series-pro-850g-850-w/p/878897Read 14 October 2026EAN 4711581491441 for PRO-850G. Grosbill lists the same EAN with reference 90-UXR085-GNEAA2.9Retailer pagegrosbill.com/asrock-atx-850w-169624Read 14 October 2026EAN 4711581491441, manufacturer reference 90-UXR085-GNEAA2. Grosbill ticks ATX 3.0 and calls the cables non-modular. The maker says ATX 3.1, which is stored.

4711377297783, 8241423980812Maker product pagede-store.msi.com/products/mag-a850gls-pcie5Read 14 October 2026MSI e-shop Germany: EAN 4711377297783 (gtin13 in the page data).8Spec databasebuildcores.com/products/PSU/3qgsgnsga/MSI-MAG-A850GLS-PCIE5Read 14 October 2026BuildCores lists UPC 824142398081 and EANs 4711377297783 and 4711377297790 with part numbers MAG A850GLS PCIE5, 306-7ZPIY11-CE0 and 306-7ZP1B31-CE0. The UPC comes from this one source. The second EAN is not stored since its model was not identified.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

Not available

May 20253Press articlekitguru.net/components/power-supplies/joao-silva/msi-introduces-new-mag-a-gls-atx-3-1-psusRead 14 October 2026Article dated May 28, 2025. The month is stored.

Status

Available2Maker product pageweb.archive.org/web/20250919085843/https://asrock.com/Power-Supply/PRO/PRO-850G/index.aspRead 14 October 2026Archive copy of the ASRock page from 2025-09-19 (the model is listed). Retailers sell the unit in October 2026.

Available2Maker product pagede-store.msi.com/products/mag-a850gls-pcie5Read 14 October 2026Page data shows the offer as in stock on 2026-10-14.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

Not available

Not available

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

Not available

ColoursiThe maker's own colour names

Black7Retailer pageparadigit.ie/asrock-pro-850g-850-w/21845961/productRead 14 October 2026Colour of product: Black.

Not available

Form factoriThe physical size standard that decides what fits in the case. An ATX unit is 150 × 86 mm at the back. An SFX unit is 125 × 63.5 mm.

ATX6Retailer pageamazon.com/dp/B0FSTHTLZTRead 14 October 2026Product details: Form Factor ATX. The 150 x 86 mm back face is the ATX size.

ATX1Maker spec sheet (PDF)storage-asset.msi.com/datasheet/power-supply/us/MAG-A850GLS-PCIE5.pdfRead 14 October 2026Dimensions (DxWxH) 150 x 150 x 86 mm. The back face is 150 x 86 mm, the standard ATX size.

ATX versioniThe ATX12V design guide revision the maker claims compliance with. A 16-pin GPU cable alone does not establish ATX 3.x. A Cybenetics report that withholds its ATX badge does not change the maker's claim. It goes in the source note.

ATX 3.12Maker product pageweb.archive.org/web/20250919085843/https://asrock.com/Power-Supply/PRO/PRO-850G/index.aspRead 14 October 2026Specification: ATX 12V Version ATX 3.1. Headline: ATX3.1 & PCIe5.1 Ready.

ATX 3.12Maker product pagede-store.msi.com/products/mag-a850gls-pcie5Read 14 October 2026Page title and text: 850 W ATX 3.1 Netzteil with a native 12V-2x6 / PCIe 5.1 connector.3Press articlekitguru.net/components/power-supplies/joao-silva/msi-introduces-new-mag-a-gls-atx-3-1-psusRead 14 October 2026Launch coverage: all models in the series comply with ATX 3.1. The Cybenetics report ticks ATX v3.1 PSU Power Excursion.

PCIe CEM versioniThe PCI Express card power revision the maker claims, as printed next to the ATX version. It sets the GPU power connector rules. It is not a slot speed. A reviewer's statement is not enough.

PCIe 5.12Maker product pageweb.archive.org/web/20250919085843/https://asrock.com/Power-Supply/PRO/PRO-850G/index.aspRead 14 October 2026Headline: ATX3.1 & PCIe5.1 Ready. Connector row: PCIe5.1 connectors (12+4pin) Dual Color.

PCIe 5.11Maker spec sheet (PDF)storage-asset.msi.com/datasheet/power-supply/us/MAG-A850GLS-PCIE5.pdfRead 14 October 2026Datasheet lists PCI-E 5.1 (16 pin) with a native 12V-2x6 connector.

Modular cablesiFull means every cable detaches. Semi means some cables are fixed, usually the 24-pin and CPU cables.

None6Retailer pageamazon.com/dp/B0FSTHTLZTRead 14 October 2026Product details: Power Supply Design Non-Modular. Customer reviews also say all cables are permanently attached.7Retailer pageparadigit.ie/asrock-pro-850g-850-w/21845961/productRead 14 October 2026Headline and specification: Non Modular. Inside Tech's listing says Modular: Fully, but its own table lists the same fixed counts as ASRock (one 24-pin, one EPS, two PCIe 6+2, four SATA) and the fully modular unit is the separate PRO-M850G. Amazon, Post.ch, Grosbill and Geektopia say non-modular, so none is stored as modular.8Retailer pageshop.post.ch/en/electronics/pc-components/power-supply-units/asrock-power-supply-pro-series-pro-850g-850-w/p/878897Read 14 October 2026Cable harness: Fixed.10Spec databasegeektopia.es/es/product/asrock/pro-850gRead 14 October 2026Modular: no. Geektopia gives a presentation date of April 17, 2026, which is later than the ASRock page archived in September 2025, so it is not used for the release month.

Fully modular1Maker spec sheet (PDF)storage-asset.msi.com/datasheet/power-supply/us/MAG-A850GLS-PCIE5.pdfRead 14 October 2026

Built by (OEM)iThe company that designed and built the unit for the brand, such as CWT or FSP. As named by the maker, a teardown review or a Cybenetics report.

Not available

Channel Well Technology (CWT)4Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026DUT Information: OEM/ODM CWT. Hardware Busters names the company Channel Well Technology.5Reviewhwbusters.com/psus/msi-mag-a850gls-pcie5-atx-v3-1-psu-reviewRead 14 October 2026Technical specifications: Manufacturer (OEM) CWT. Part analysis page: the OEM is Channel Well Technology. Review published June 5, 2025.

Power

4 of 9 differ

Rated continuous poweriThe continuous DC output the maker rates the unit for, such as 850. Peak or power excursion figures are not stored here.

850W2Maker product pageweb.archive.org/web/20250919085843/https://asrock.com/Power-Supply/PRO/PRO-850G/index.aspRead 14 October 2026Model name PRO-850G and the 80 PLUS certificate state 850 W.5Certification listclearesult.com/80plus/sites/80plus/files/manufacturer-certificate/ASRock_PRO-850G_850W_SOCE%207106.7_Report.pdfRead 14 October 2026Rated output power 850 W.

850W1Maker spec sheet (PDF)storage-asset.msi.com/datasheet/power-supply/us/MAG-A850GLS-PCIE5.pdfRead 14 October 2026Power Watt 850W. Power excursion up to 1870W for 100 microseconds is not stored.

Full power rated up toiThe ambient temperature up to which the maker rates full continuous power, such as 50 °C. A review table that prints 0-50 °C with no maker source is not enough. An operating temperature range that does not say full power is not enough. A maker table with load steps gives the full-load row, such as 40 °C at full load next to 50 °C at 80 percent load. A temperature that a Cybenetics report marks as manufacturer-provided counts as a maker statement.

Not available

Not available

12V rail designiHow the maker splits +12V over-current protection. Switchable means the user picks single or multi rail with a switch or in software.

Not available

Single rail4Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026Power Specifications: one +12V column with 70.8A and 850W.5Reviewhwbusters.com/psus/msi-mag-a850gls-pcie5-atx-v3-1-psu-reviewRead 14 October 2026Technical specifications: Number of 12V rails 1.

+12V max currentiHighest combined current on +12V from the maker's power table. For a multi-rail unit this is the combined total, not one rail.

70.8A2Maker product pageweb.archive.org/web/20250919085843/https://asrock.com/Power-Supply/PRO/PRO-850G/index.aspRead 14 October 2026Specification: Continuous 12V output 70.8 A. ASRock publishes no +3.3V, +5V or +5VSB table for this model.7Retailer pageparadigit.ie/asrock-pro-850g-850-w/21845961/productRead 14 October 2026Energy management: Max output current (+12V) 70.8 A. The same table lists +3.3V and +5V at 100 W each, which is not the combined limit and is not stored.

70.8A1Maker spec sheet (PDF)storage-asset.msi.com/datasheet/power-supply/us/MAG-A850GLS-PCIE5.pdfRead 14 October 2026DC output table: +12V 70.8A, 849.6W. The datasheet prints -12V 0.3A and 3.6W next to it.

+12V max poweriHighest combined power on +12V from the maker's power table.

850W7Retailer pageparadigit.ie/asrock-pro-850g-850-w/21845961/productRead 14 October 2026Energy management: Combined power (+12V) 850 W.

849.6W1Maker spec sheet (PDF)storage-asset.msi.com/datasheet/power-supply/us/MAG-A850GLS-PCIE5.pdfRead 14 October 2026DC output table: +12V 70.8A, 849.6W.

+3.3V and +5V combined poweriThe combined limit for the +3.3V and +5V rails from the maker's power table. A table that prints the same figure under both rails, as be quiet! does, shows one shared limit, so the figure is stored once and not added.

Not available

100W1Maker spec sheet (PDF)storage-asset.msi.com/datasheet/power-supply/us/MAG-A850GLS-PCIE5.pdfRead 14 October 2026DC output table: +5V 20A and +3.3V 20A with a combined 100W.

+5V standby currentiHighest current on the +5VSB standby rail. It powers USB charging and wake functions while the PC is off.

3A7Retailer pageparadigit.ie/asrock-pro-850g-850-w/21845961/productRead 14 October 2026Energy management: Max output current (+5Vsb) 3 A.

3A1Maker spec sheet (PDF)storage-asset.msi.com/datasheet/power-supply/us/MAG-A850GLS-PCIE5.pdfRead 14 October 2026DC output table: +5Vsb 3A, 15W.

AC input voltageiThe rated AC input range, such as 100 to 240 V.

Lowest100Highest240V2Maker product pageweb.archive.org/web/20250919085843/https://asrock.com/Power-Supply/PRO/PRO-850G/index.aspRead 14 October 2026Specification: AC Input 100-240V~, 50-60Hz, 12-6A.

Lowest100Highest240V1Maker spec sheet (PDF)storage-asset.msi.com/datasheet/power-supply/us/MAG-A850GLS-PCIE5.pdfRead 14 October 2026Input voltage range 100-240V, 12A, 47-63 Hz.

Alternative low power mode (ALPM)iThe maker or a Cybenetics report states support for the ATX alternative low power mode used by Modern Standby.

Not available

Yes4Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026Temperature and Compliance Info: ALPM (Alternative Low Power Mode) compatible, checked.

Certifications

4 of 5 differ

80 PLUS ratingiThe 80 PLUS level. When the 80 PLUS listing or certificate and the maker claim differ, store the listing level and put the claim and test voltage in the source note. When a model has several 80 PLUS entries, such as a newer test at a higher level, use the newest entry that matches the current maker documents.

80 PLUS Gold2Maker product pageweb.archive.org/web/20250919085843/https://asrock.com/Power-Supply/PRO/PRO-850G/index.aspRead 14 October 2026Headline: 80 PLUS GOLD Certified.5Certification listclearesult.com/80plus/sites/80plus/files/manufacturer-certificate/ASRock_PRO-850G_850W_SOCE%207106.7_Report.pdfRead 14 October 202680 PLUS certificate ID 7106.7 for model PRO-850G: Gold at 115 V, rated 850 W, type ATX12V, test date 2023-07-27, average efficiency 87.69% and 91.47% at 50% load. The test date is older than the ATX 3.1 standard, so ASRock may have kept the certificate for the ATX 3.1 revision. The ASRock page and all retailers state Gold.

80 PLUS Gold6Certification listclearesult.com/80plus/certified-psus/Micro-Star-International-Co-Ltd/MAG-A850GLS-PCIE5-115V-Internal-7747Read 14 October 202680 PLUS ID 7747, model MAG A850GLS PCIE5, type ATX 3.1, 850 W, 115V Internal, Gold, test date 2025-02-20. The certificate lists no sample serial. Matched by the exact model name.

Cybenetics efficiency at 115ViThe Cybenetics ETA level from the 115V test. The Cybenetics report wins over the maker's claim.

Not available

Cybenetics Platinum4Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026Report 25PS2806A, certification ID 252806, issued May 8, 2025. The ETA badge shows Platinum at 115V, as Hardware Busters also prints. KitGuru's launch coverage says Gold without a voltage.

Cybenetics efficiency at 230ViThe Cybenetics ETA level from the 230V test. The 230V thresholds are higher, so the level can differ from the 115V level. The Cybenetics report wins over the maker's claim.

Not available

Cybenetics Platinum4Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026The ETA badge shows Platinum at 230V.

Cybenetics noise at 115ViThe Cybenetics LAMBDA level from the 115V test. A++ is the quietest. The Cybenetics report wins over the maker's claim.

Not available

A+4Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026The LAMBDA badge shows A+ at 115V.

Cybenetics noise at 230ViThe Cybenetics LAMBDA level from the 230V test. The Cybenetics report wins over the maker's claim.

Not available

A+4Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026The LAMBDA badge shows A+ at 230V.

Measured

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Average efficiency at 115V (measured)iAverage efficiency over the whole load range at 115V input, from more than 1450 load combinations in the Cybenetics method. It is not the peak efficiency or the efficiency at 50% load.

Not available

89.955%4Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026Average over more than 1450 load combinations at 115V. Report issued May 8, 2025, sample received Apr 23, 2025, no serial number printed. The report prints a testing date of Mar 8, 2025. Ambient 28-32 C.

Average efficiency at 230V (measured)iThe same average efficiency at 230V input.

Not available

91.845%4Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026Average over more than 1450 load combinations at 230V.

Light-load efficiency at 115V (measured)iEfficiency at a 10 W load for units up to 500 W, or at a 2% load for larger units, at 115V input. This is the ATX light-load test.

Not available

71.388%4Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026Efficiency at 2% load (more than 500 W unit) at 115V.

Average power factor at 115V (measured)iAverage power factor over the whole load range at 115V input. 1 is the best possible value.

Not available

0.9834Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026Average over more than 1450 load combinations at 115V. At 230V it is 0.947.

Average noise at 115V (measured)iAverage noise over the whole load range at 115V input in the Cybenetics method, at about 30 °C ambient. It is not the noise at full load.

Not available

18.07dB(A)4Measurementcybenetics.com/evaluations/psus/2806Read 14 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 18.05 dBA.

Noise at full load at 115V (measured)iNoise at 100% load at 115V input in the Cybenetics typical load tests. That row often runs at about 45 °C intake. The intake temperature and the fan speed go in the source note. Lower is better.

Not available

46.3dB(A)4Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026Typical load tests at 115V, 100% load row: 46.3 dB(A) at 2151 rpm fan speed, ambient about 30 C.

Standby power with no load at 115V (measured)iPower the unit draws from the wall with the PC off and nothing drawn from +5VSB, at 115V input.

Not available

0.037W4Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026Standby power consumption at 115V with no load on +5VSB: 0.0370 W. At 230V it is 0.0782 W.

Hold-up time (measured)iHow long the outputs stay in regulation after AC power is lost, at maximum continuous load, as printed in the Cybenetics report. The report names no input voltage. The AC loss to PWR_OK time goes in the source note. Higher is better.

Not available

18.6ms4Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026Hold-Up Time and PWR_OK Signal: hold-up time 18.6 ms, AC loss to PWR_OK 16.6 ms, PWR_OK inactive to DC loss 2.0 ms, at maximum continuous load. The report names no input voltage.

12V ripple at full load (measured)iPeak-to-peak ripple on the +12V rail at full load and 115V input. Lower is better.

Not available

39.43mV4Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026Non-accredited measurement. 12V ripple at full load at 115V. At 230V it is 39.66 mV.

12V load regulation (measured)iHow far the +12V voltage moves between light and full load at 115V input. Lower is better.

Not available

0.59%4Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026Non-accredited measurement. 12V load regulation at 115V. At 230V it is 0.65%.

Cables and connectors

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CablesiOne row per kind of cable that runs from the PSU to a device. Connector is the plug at the device end. Count is the number of those plugs over all cables in the row. Length runs from the PSU end to the first plug. Adapters that plug into other cables are left out. Use 16-pin PCIe when the maker names a 16-pin GPU cable without saying 12V-2x6 or 12VHPWR. A cable from a 12V-2x6 socket on the PSU to 8-pin plugs is a cable, not an adapter, and counts as PCIe 8-pin. When the maker's documents name one GPU cable both 12VHPWR and 12V-2x6, use 16-pin PCIe and name both in the source note. Cables of one connector kind with different lengths or wire gauges get one row each.

AASRock PRO-850G

Connector	Connectors	Cables	Length to first plug (mm)
ATX 24-pin (20+4)	1	1	600
CPU 8-pin (EPS, 4+4)	1	1	650
PCIe 8-pin (6+2)	2	2	600
12V-2x6	1	1	600
SATA power	4	2	450
4-pin Molex	2	1	450

Source2Maker product pageweb.archive.org/web/20250919085843/https://asrock.com/Power-Supply/PRO/PRO-850G/index.aspRead 14 October 2026Specification connector rows: 24-pin 1, EPS 4+4 pin 1, PCIe 5.1 12+4 pin dual color 1, PCIe 6+2 pin 2, 4-pin peripheral 2, SATA 4. The lengths and cable counts come from the cable drawing on the Amazon listing. The page gives no cable lengths or wire gauge. 12V-2x6 power rating is not stated for this model.6Retailer pageamazon.com/dp/B0FSTHTLZTRead 14 October 2026Listing image 4, a drawing published with the product: MB 24 pin 1x 600 mm, CPU 4+4 pin 1x 650 mm, PCIe 12V-2x6 1x 600 mm, PCIe 6+2 pin 2x 600 mm, one SATA cable with 3 SATA plugs and one PATA cable with 2 PATA plugs and 1 SATA plug, both 450 mm to the first plug and 120 mm between plugs. Totals match the ASRock page: 4 SATA and 2 peripheral plugs. The two PCIe 6+2 pin plugs are drawn as two separate cables. The same listing gallery also shows the PRO-850B, PRO-650B and PRO-750G, so only this drawing, which matches the ASRock counts, is used.

BMSI MAG A850GLS PCIE5

Connector	Connectors	Cables	Length to first plug (mm)	Wire gauge	Rated power (W)
ATX 24-pin (20+4)	1	1	600	16-20AWG	Not available
CPU 8-pin (EPS, 4+4)	2	2	650	18AWG	Not available
PCIe 8-pin (6+2)	4	Not available	600	18AWG	Not available
12V-2x6	1	1	600	Not available	600
SATA power	8	Not available	500	18-20AWG	Not available
4-pin Molex	3	Not available	500	18-20AWG	Not available
4-pin floppy	1	Not available	500	18-20AWG	Not available

Source1Maker spec sheet (PDF)storage-asset.msi.com/datasheet/power-supply/us/MAG-A850GLS-PCIE5.pdfRead 14 October 2026Connector counts from the datasheet: ATX 1, EPS 2 (listed as 1 EPS 8-pin and 1 EPS 4+4-pin), PCI-E 6+2 pin 4, 16-pin 12V-2x6 1 (600W), SATA 8, Molex 3, FDD 1. The datasheet gives no cable counts, lengths or gauge. Those come from the Cybenetics cable table. The Cybenetics sample had only 2 PCIe 6+2 plugs, 7 SATA plugs and 2 FDD plugs, so no cable count is stored for those rows. The MSI German shop lists EPS (4+4 PIN) 2.4Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026Cables and Connectors table: ATX 20+4 pin 600 mm 16-20AWG, 2 x 8-pin EPS 650 mm 18AWG, 2 PCIe 6+2 pin 600 mm 18AWG, 12+4 pin PCIe (600W) 600 mm 16-24AWG, one cable with 3 SATA (500 mm then 150 mm spacing) and 1 Molex 18AWG, two cables with 2 SATA, 1 Molex and 1 FDD each 18-20AWG. The 16-24AWG range for the 12V-2x6 cable includes the thin sideband wires, so no gauge is stored for it. The first plug of each SATA, Molex and FDD cable is 500 mm from the PSU. Plug counts for PCIe, SATA, Molex and FDD follow the MSI datasheet because the sample differs.5Reviewhwbusters.com/psus/msi-mag-a850gls-pcie5-atx-v3-1-psu-reviewRead 14 October 2026Product photos and cables page: the same cable table as the Cybenetics report. The review says the sample had two FDD connectors, which MSI's datasheet lists as one.

CPU (EPS) connectorsi8-pin or 4+4-pin CPU power plugs.

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PCIe 8-pin connectorsi8-pin or 6+2-pin GPU power plugs. Counts the plugs in the box. Some cables share one PSU socket, which the source note says.

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16-pin GPU connectorsiNative 16-pin GPU power plugs: 12V-2x6, 12VHPWR and 16-pin cables of unstated revision. Adapters are not counted. Counts the plugs in the box. Some cables share one PSU socket, which the source note says.

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SATA power connectors

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8=CalculatedFrom Cables

4-pin Molex connectors

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Cable styleiHow the modular cables are made. Mixed means some cables are sleeved and others flat, such as a sleeved 24-pin cable with flat other cables. From the maker page or a review photo page.

Flat2Maker product pageweb.archive.org/web/20250919085843/https://asrock.com/Power-Supply/PRO/PRO-850G/index.aspRead 14 October 2026Specification: Cable Type Flat.

Embossed or debossed flat1Maker spec sheet (PDF)storage-asset.msi.com/datasheet/power-supply/us/MAG-A850GLS-PCIE5.pdfRead 14 October 2026Datasheet: Embossed Jacket Cables. A French retailer calls them flat cables.

Fan

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Fan sizeiFrame size of the cooling fan, such as 120, 135 or 140.

120mm2Maker product pageweb.archive.org/web/20250919085843/https://asrock.com/Power-Supply/PRO/PRO-850G/index.aspRead 14 October 2026Specification: Fan 120mm Fan. Headline: Low noise 120mm FAN. The page names no bearing.

135mm1Maker spec sheet (PDF)storage-asset.msi.com/datasheet/power-supply/us/MAG-A850GLS-PCIE5.pdfRead 14 October 2026Fan Size 135 mm.4Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026Cooling: 135mm Fluid Dynamic Bearing Fan (ZFF132512H).

Fan bearingiUse the maker's bearing name. FDB and S-FDB are fluid dynamic. HDB is hydrodynamic. Noctua SSO and SSO2 are SSO. Corsair Magnetic Dome is magnetic dome. A brand bearing name that fits no option is Other.

Not available

Fluid dynamic (FDB)1Maker spec sheet (PDF)storage-asset.msi.com/datasheet/power-supply/us/MAG-A850GLS-PCIE5.pdfRead 14 October 2026Fan Bearing Fluid Dynamic Bearing. A French retailer calls the fan hydrodynamic. The datasheet also prints Rated Speed 500 - 1800 +-15% RPM.4Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026Cooling: Fluid Dynamic Bearing fan.

Fan modeiSemi-passive means the fan stops at low load, often sold as zero RPM, hybrid or 0 dB mode. Fanless means the unit has no fan.

Always on2Maker product pageweb.archive.org/web/20250919085843/https://asrock.com/Power-Supply/PRO/PRO-850G/index.aspRead 14 October 2026Specification: iCOOL MODE No. The quick installation guide says that with iCOOL mode on, the fan does not spin at low to medium load. With iCOOL marked No, the fan spins at all loads.3Owner's manualdownload.asrock.com/Manual/QIG/Power%20Supply%20Series_multiQIG.pdfRead 14 October 2026Step 8: if the iCOOL mode is set to ON, the fan will not spin during low to medium loads.

Always on4Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026Semi-Passive Operation is not checked. The typical load table shows the fan at 413 rpm at 10% load.5Reviewhwbusters.com/psus/msi-mag-a850gls-pcie5-atx-v3-1-psu-reviewRead 14 October 2026Technical specifications: Semi-Passive Operation not supported. The review prefers a PWM fan at low speed over a fan-stop feature.

Fan mode switchiA button, switch or software setting lets the user turn the semi-passive mode off so the fan always spins. A unit without a semi-passive mode, whose fan the maker says always spins, has no switch, so it is false.

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No5Reviewhwbusters.com/psus/msi-mag-a850gls-pcie5-atx-v3-1-psu-reviewRead 14 October 2026Product photos page: there is no ECO switch, since the PSU does not have semi-passive operation.

Protection and parts

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ProtectionsiProtections the maker lists, or a retailer spec table copies from the maker, plus protections the Cybenetics protection tests show working (UVP, NLO, SIP). The Cybenetics manufacturer list has no OVP or UVP row, so do not build the list from it alone. A protection that is not listed may still exist. No-load covers no-load operation and no-load protection. Fan failure is a maker's fan failure protection or fan safeguard, also when the Cybenetics manufacturer block lists it.

Over-current (OCP), Short-circuit (SCP), Over-voltage (OVP), Under-voltage (UVP), Over-temperature (OTP), Over-power (OPP)2Maker product pageweb.archive.org/web/20250919085843/https://asrock.com/Power-Supply/PRO/PRO-850G/index.aspRead 14 October 2026Specification: Protections OCP, SCP, OVP, UVP, OTP, OPP.

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)1Maker spec sheet (PDF)storage-asset.msi.com/datasheet/power-supply/us/MAG-A850GLS-PCIE5.pdfRead 14 October 2026Protection line: OCP/ OTP/ OPP/ SCP/ OVP/ UVP/ SIP/ NLO.4Measurementcybenetics.com/evaluations/psus/2806Read 14 October 2026Protection Features page shows OPP, +12V OCP, OTP, SCP, surge and inrush protection ticked and fan failure protection not ticked. The protection tests tick UVP at 90 V and 80 V and NLO, and SIP shows an MOV for surge and an NTC with bypass relay for inrush. OVP is in the MSI protection line.

All-Japanese capacitorsiThe maker states that every electrolytic capacitor is from a Japanese maker. A Japanese bulk capacitor alone is not enough. A spec row such as "Japanese capacitors" that names no exception counts.

No2Maker product pageweb.archive.org/web/20250919085843/https://asrock.com/Power-Supply/PRO/PRO-850G/index.aspRead 14 October 2026Specification: Capacitors All Taiwanese. Stored as false.

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MTBF (claimed)iThe maker's mean time between failures, such as 100000. An MTTF figure for the whole unit counts too. An MTTF for the fan alone does not. The test temperature goes in the source note.

100,000h2Maker product pageweb.archive.org/web/20250919085843/https://asrock.com/Power-Supply/PRO/PRO-850G/index.aspRead 14 October 2026Specification: MTBF (Hours)@25°C 100,000.

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Monitoring and lighting

None of 4 known

Software monitoringiThe unit reports power, temperature or fan data to PC software over a USB or internal connection.

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SoftwareiThe maker's software for monitoring or control.

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Built-in power displayiA screen on the unit that shows live power draw or other readings.

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RGB lighting

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Dimensions and weight

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DimensionsiBody without cables. Width and height are the back face with the AC inlet. Depth is the length into the case, which decides case fit.

Width150Height86Depth140mm(5.9 × 3.4 × 5.5 in)2Maker product pageweb.archive.org/web/20250919085843/https://asrock.com/Power-Supply/PRO/PRO-850G/index.aspRead 14 October 2026Specification: Dimensions (L x W x H) 140mm x 150mm x 86mm. Depth is 140 mm and the back face is 150 x 86 mm.6Retailer pageamazon.com/dp/B0FSTHTLZTRead 14 October 2026Item dimensions 5.51 x 5.91 x 3.39 inches, which is 140 x 150 x 86 mm.

Width150Height86Depth150mm(5.9 × 3.4 × 5.9 in)1Maker spec sheet (PDF)storage-asset.msi.com/datasheet/power-supply/us/MAG-A850GLS-PCIE5.pdfRead 14 October 2026Dimensions (DxWxH) 150 x 150 x 86 mm. Depth 150, width 150, height 86. Hardware Busters prints 150 x 85 x 150 mm for W x H x D.

WeightiWeight of the unit alone. Use the Hardware Busters figure on hwbusters.com when the maker states none, not a copy on another site. Maker weights that include cables or the box, such as Corsair's, and retailer packed weights are not stored. A net weight counts unless the maker says it includes the cables.

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1.6kg(3.5 lb)5Reviewhwbusters.com/psus/msi-mag-a850gls-pcie5-atx-v3-1-psu-reviewRead 14 October 2026Technical specifications: 1.60 kg (3.53 lb). The review does not say whether cables are included. MSI does not publish a weight.

In the box

None of 1 known

In the boxiItems supplied with this exact model, verbatim. The AC power cord differs per region.

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Links

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Product page

www.asrock.com/Power-Supply/PRO/PRO-850G/index.asp1Maker product pageasrock.com/Power-Supply/PRO/PRO-850G/index.aspRead 14 October 2026Maker page for the PRO-850G. ASRock's bot protection returns an empty page to the agent, so no value is taken from the live page. The text was read from the archive copy below.

de-store.msi.com/products/mag-a850gls-pcie52Maker product pagede-store.msi.com/products/mag-a850gls-pcie5Read 14 October 2026

Spec sheet

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storage-asset.msi.com/datasheet/power-supply/us/MAG-A850GLS-PCIE5.pdf1Maker spec sheet (PDF)storage-asset.msi.com/datasheet/power-supply/us/MAG-A850GLS-PCIE5.pdfRead 14 October 2026

Manual

download.asrock.com/Manual/QIG/Power%20Supply%20Series_multiQIG.pdf3Owner's manualdownload.asrock.com/Manual/QIG/Power%20Supply%20Series_multiQIG.pdfRead 14 October 2026Quick Installation Guide, linked from the ASRock PRO-850G page as the manual. It is shared by all ASRock power supply series and names no model values.

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EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

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Warranty

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Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

3years2Maker product pageweb.archive.org/web/20250919085843/https://asrock.com/Power-Supply/PRO/PRO-850G/index.aspRead 14 October 2026Specification: Warranty (Years) 3. The page is the global ASRock page and names no market.

7years2Maker product pagede-store.msi.com/products/mag-a850gls-pcie5Read 14 October 2026Page shows 7 Jahre Garantie. The page is the German shop, so the market is Germany. KitGuru also reports 7 years at launch.3Press articlekitguru.net/components/power-supplies/joao-silva/msi-introduces-new-mag-a-gls-atx-3-1-psusRead 14 October 2026Launch coverage: all models are backed by a 7-year warranty. No market is named.

Both are also in the API. Back to all power supplies.