{"data":{"slug":"asrock-steel-legend-sl-850g","type":"power_supply","brand":"ASRock","name":"Steel Legend SL-850G","aliases":["SL-850G","ASRock SL-850G","Steel Legend 850W","SL-850GW","90-UXS085-GFEAAA"],"release_date":"2024-11","url":"https://arkivo.dev/power-supplies/asrock-steel-legend-sl-850g","specs":{"series":"Steel Legend","model_numbers":["SL-850G","SL-850GW"],"gtins":null,"announce_date":null,"status":"available","predecessor":null,"successor":null,"launch_price_usd":null,"launch_price_eur":null,"markets":null,"colors":["Steel Black","Steel White"],"manufacturer_url":"https://www.asrock.com/Power-Supply/SteelLegend/SL-850G/","spec_sheet_url":null,"manual_url":null,"eprel_registration_number":null,"warranty_years":10,"psu_standard":"atx","psu_atx_version":"atx_3_1","pcie_cem_version":"pcie_5_1","psu_modular":"full","oem_manufacturer":"HEC","psu_w":850,"rated_power_temp_c":null,"rail_12v_design":"single","rail_12v_current_a":70.9,"rail_12v_power_w":850,"minor_rails_combined_w":120,"rail_5vsb_current_a":3,"ac_input_voltage":{"min_v":100,"max_v":240},"alpm_support":true,"efficiency_80_plus":"80_plus_platinum","cybenetics_efficiency_115v":"cybenetics_platinum","cybenetics_efficiency_230v":"cybenetics_platinum","cybenetics_noise_115v":"a_plus","cybenetics_noise_230v":"a_plus","measured_avg_efficiency_115v_pct":89.823,"measured_avg_efficiency_230v_pct":91.931,"measured_light_load_efficiency_115v_pct":70.773,"measured_avg_power_factor_115v":0.982,"measured_avg_noise_115v_dba":18.27,"measured_noise_full_load_115v_dba":39.5,"measured_vampire_power_115v_w":0.0556,"measured_hold_up_time_ms":18.2,"measured_ripple_12v_mv":44.38,"measured_load_regulation_12v_pct":0.36,"cables":[{"connector":"atx_24pin","count":1,"cable_count":1,"length_mm":600,"gauge_awg":"18AWG","rated_power_w":null},{"connector":"eps_8pin","count":2,"cable_count":2,"length_mm":650,"gauge_awg":"18AWG","rated_power_w":null},{"connector":"pcie_8pin","count":5,"cable_count":3,"length_mm":600,"gauge_awg":"18AWG","rated_power_w":null},{"connector":"12v_2x6","count":1,"cable_count":1,"length_mm":650,"gauge_awg":"16AWG","rated_power_w":600},{"connector":"sata","count":9,"cable_count":3,"length_mm":450,"gauge_awg":"18AWG","rated_power_w":null},{"connector":"molex","count":3,"cable_count":1,"length_mm":450,"gauge_awg":"18AWG","rated_power_w":null}],"eps_connector_count":2,"pcie_8pin_connector_count":5,"gpu_16pin_connector_count":1,"sata_connector_count":9,"molex_connector_count":3,"cable_style":"flat","fan_size_mm":135,"fan_bearing":"fluid_dynamic","fan_mode":"semi_passive","fan_mode_switch":true,"protections":["ocp","ovp","uvp","opp","otp","scp","nlo","sip"],"all_japanese_capacitors":true,"mtbf_h":100000,"software_monitoring":null,"software_name":null,"power_display":null,"rgb_lighting":null,"dimensions_mm":{"width_mm":150,"height_mm":86,"depth_mm":150},"weight_kg":null,"in_the_box":["Power Supply","AC Power Cord","Modular Cables","ATX Bridging Connector Plug","Mounting Screws","Cable Ties","Velcro Straps","Leaflet"]},"variants":[{"model_number":"SL-850G","colors":["Steel Black"]},{"model_number":"SL-850GW","colors":["Steel White"]}],"sources":[{"url":"https://www.asrock.com/Power-Supply/SteelLegend/SL-850G/","kind":"manufacturer_page","accessed":"2026-10-14","fields":["manufacturer_url"],"notes":{"manufacturer_url":"ASRock's product page answers agents with a bot check, so its text was not read. The link is the page that search results name for the SL-850G. The specs below come from a retailer copy of ASRock's spec table, the photographed retail box, reviews and the Cybenetics report."}},{"url":"https://www.kitguru.net/components/power-supplies/zardon/asrock-steel-legend-sl-850g-psu-review/","kind":"review_site","accessed":"2026-10-14","fields":["release_date","warranty_years","psu_atx_version","pcie_cem_version","psu_modular","oem_manufacturer","rail_12v_current_a","rail_12v_power_w","minor_rails_combined_w","rail_5vsb_current_a","ac_input_voltage","cables","cable_style","fan_size_mm","fan_bearing","fan_mode","fan_mode_switch","protections","all_japanese_capacitors","dimensions_mm","psu_standard"],"notes":{"release_date":"Review published November 27, 2024 and says ASRock told KitGuru the unit would sell in the UK in the coming weeks. Cybenetics tested it on Aug 24, 2024. The 80 PLUS test date is Oct 10, 2024. PC Perspective covered the review on December 2, 2024 and Funky Kit published on December 4, 2024. The first retail month is not confirmed, so the month of the first reviews is stored.","warranty_years":"Overview: Global 10 Years Warranty.","psu_atx_version":"Back of the retail box (photo on page 2): Meets ATX 3.1 Specification. The overview says ATX 3.1 and PCIe 5.1 compliant.","pcie_cem_version":"Back of the retail box: Native Durable 105C PCIe CEM 5.1 12+4-pin Cable.","psu_modular":"Overview: Fully Modular design.","oem_manufacturer":"Page 4: this power supply is an OEM partner design from HEC.","rail_12v_current_a":"Page 3: the unit delivers 70.9A on the main +12V rail. The retail box DC output table lists +12V 70.9A.","rail_12v_power_w":"Retail box DC output table, combined power row: +12V 850W, total output power 850W.","minor_rails_combined_w":"Page 3: +3.3V and +5V can each deliver 20A for a total of 120W. The retail box table lists 120W for the combined +3.3V and +5V power.","rail_5vsb_current_a":"Retail box DC output table: +5Vsb 3A, 15W.","ac_input_voltage":"Retail box specifications: AC input 100-240V, 50-60Hz, 10-5A.","cables":"Retail box Cables Included drawing: 1x MB 20+4 pin 600 mm, 2x CPU 4+4 pin 650 mm, 1x PCIe 12V-2x6 650 mm, 3x PCIe 6+2 pin 600 mm, 3x SATA 450 mm then 120 mm then 120 mm, 1x PATA 450 mm then 120 mm then 120 mm. The box counts cables. The review photo of the cables and the Cybenetics table show that two of the three PCIe 6+2 cables carry two plugs each, so the unit has 5 PCIe 8-pin plugs on 3 cables. ASRock-derived spec lists print 3 for PCIe 6+2 pin connectors, which counts the cables. SATA is 9 plugs on 3 cables and the Molex row is 3 plugs on 1 cable, as in the ASRock spec list. Cybenetics prints 16-24AWG for the 12V-2x6 cable. That range includes the thin sideband wires, so the 16AWG power wire gauge is stored.","cable_style":"Page 2: ASRock are using thin ribbon style cables.","fan_size_mm":"Page 4: 135 mm fan, model S1352512EH-3M.","fan_bearing":"Page 4: high grade fluid dynamic bearing (FDB) fan.","fan_mode":"Page 3: the iCool switch switches the fan off in lower demand situations, like the semi passive switches of other brands. Page 6: the fan remains off until higher loads are demanded.","fan_mode_switch":"Page 3: a switch labelled iCool on the power side of the unit.","protections":"Page 4: SCP, OPP, OCP, OTP, OVP and UVP protections. The retail box lists OPP/OVP/UVP/SCP/OCP/OTP.","all_japanese_capacitors":"Retail box feature list: 100% Highly Reliable Japanese Capacitors. Page 4: Japanese capacitors throughout the design.","dimensions_mm":"Page 3: 150 mm x 150 mm x 86 mm (L x W x H). Depth 150, width 150, height 86.","psu_standard":"Page 3 gives the 150 x 150 x 86 mm body of an ATX unit."}},{"url":"https://inside-tech.co.uk/power-supplies-2/asrock-steel-legend-sl-850g-850w-atx-power-supply-unit-80-plus-gold-certified-120mm-silent-cooling-fan-high-efficiency-psu/","kind":"retailer","accessed":"2026-10-14","fields":["series","mtbf_h","status","colors","warranty_years","variants"],"notes":{"series":"The listing copies ASRock's Steel Legend text and spec table.","mtbf_h":"Spec table row MTBF (Hours)@25C: 100,000. The listing copies ASRock's table, so the 25 C test temperature is the maker's. Paradigit lists the same 100000 hours.","status":"UK retailer listing shows the unit in stock in October 2026.","colors":"ASRock's series text on the page: available in Steel Black and Steel White. SL-850G is the black model and SL-850GW the white model.","warranty_years":"Spec table: Warranty (Years) 10. The market is not named.","variants":"Black (SL-850G) and white (SL-850GW) models. Cybenetics says its results apply to both, and the 80 PLUS list has a separate Platinum entry for each."}},{"url":"https://www.funkykit.com/reviews/power-supplies/asrock-steel-legend-sl-850g-850w-power-supply-review/","kind":"review_site","accessed":"2026-10-14","fields":["rail_12v_design","colors","in_the_box","cables","cable_style"],"notes":{"rail_12v_design":"Review text quotes ASRock: a powerful +12V single rail at 70.9A, up to 850W.","colors":"Page 2 quotes ASRock: the series is available in Steel Black and Steel White.","in_the_box":"Page 3: power supply, power cord for the wall, modular power cables, ATX bridging connector plug (detection tool), mounting screws, cable ties and velcro straps. KitGuru adds a leaflet.","cables":"Page 3 lists 1 ATX 24-pin, 2 CPU 8-pin (4+4), 3 PCIe 8-pin (6+2) cables, 1 12VHPWR (12V-2x6) cable rated up to 600W, 3 SATA cables and 1 PATA cable. Cable counts match the Cybenetics table.","cable_style":"Page 1: a full set of flat modular cables."}},{"url":"https://www.manua.ls/asrock/steel-legend-sl-850g/manual","kind":"manual","accessed":"2026-10-14","fields":["fan_mode_switch"],"notes":{"fan_mode_switch":"Quick Installation Guide step 8: if the iCOOL mode is set to ON, the fan will not spin during low to medium loads. The PDF is hosted on manua.ls."}},{"url":"https://geizhals.de/asrock-steel-legend-sl-g-atx-3-1-v184341.html","kind":"retailer","accessed":"2026-10-14","fields":["model_numbers","status"],"notes":{"model_numbers":"Geizhals lists the SL-850G with the manufacturer number 90-UXS085-GFEAAA, stored as an alias. The SL-850GW is the white model in the 80 PLUS list, the Cybenetics report and retail listings.","status":"21 offers listed."}},{"url":"https://www.cybenetics.com/evaluations/psus/2548/","kind":"measurement","accessed":"2026-10-14","fields":["psu_w","psu_standard","oem_manufacturer","alpm_support","fan_mode","fan_mode_switch","rail_12v_design","cybenetics_efficiency_115v","cybenetics_efficiency_230v","cybenetics_noise_115v","cybenetics_noise_230v","measured_avg_efficiency_115v_pct","measured_avg_efficiency_230v_pct","measured_light_load_efficiency_115v_pct","measured_avg_power_factor_115v","measured_avg_noise_115v_dba","measured_vampire_power_115v_w","measured_ripple_12v_mv","measured_load_regulation_12v_pct","measured_hold_up_time_ms","measured_noise_full_load_115v_dba","cables","protections","fan_size_mm","fan_bearing"],"notes":{"psu_standard":"DUT Information: Type ATX12V.","oem_manufacturer":"DUT Information and Parts Description: OEM/ODM HEC.","alpm_support":"Temperature and Compliance Info: ALPM (Alternative Low Power Mode) compatible, checked. ATX v3.1 PSU Power Excursion is also checked.","fan_mode":"DUT Information: Semi-Passive Operation checked (selectable). The fan reads 0 rpm up to 40% load at both voltages.","fan_mode_switch":"DUT Information: Semi-Passive Operation (selectable).","rail_12v_design":"Power Specifications table lists one +12V column, 70.9A.","cybenetics_efficiency_115v":"Report 24PS2548A, certification ID 252548, tested and issued Aug 24, 2024. ETA Platinum at 115V (badge image). The report names the model SL-850G / SL-850GW and says the results apply to both the black and white models.","cybenetics_efficiency_230v":"ETA Platinum at 230V (badge image).","cybenetics_noise_115v":"LAMBDA A+ at 115V (badge image). The measured average of 18.27 dBA fits A+. ASRock listings that print LAMBDA A refer to the series, so the report level is stored.","cybenetics_noise_230v":"LAMBDA A+ at 230V (badge image). The measured average at 230V is 17.54 dBA.","measured_avg_efficiency_115v_pct":"Average over more than 1450 load combinations at 115V. Ambient 28-32 C. Sample received Aug 9, 2024.","measured_avg_efficiency_230v_pct":"Average over more than 1450 load combinations at 230V.","measured_light_load_efficiency_115v_pct":"Efficiency at 2% load at 115V. The unit is above 500 W, so the 2% load applies. At 230V it is 72.136%.","measured_avg_power_factor_115v":"Average over more than 1450 load combinations at 115V. At 230V it is 0.944.","measured_avg_noise_115v_dba":"Average over more than 1450 load combinations at 115V, ambient 28-32 C, Bruel and Kjaer 2270 G4 sound analyzer. The 230V average is 17.54 dBA.","measured_vampire_power_115v_w":"Standby power consumption at 115V with no load on +5VSB. At 230V it is 0.1105 W.","measured_ripple_12v_mv":"Non-accredited. 12V ripple at full load at 115V. At 230V it is 46.46 mV.","measured_load_regulation_12v_pct":"Non-accredited. 12V load regulation at 115V. At 230V it is 0.41%.","measured_hold_up_time_ms":"Hold-Up Time and PWR_OK Signal: hold-up time 18.2 ms, AC loss to PWR_OK 15.7 ms, at maximum continuous load. Report 2548.","measured_noise_full_load_115v_dba":"Typical load tests at 115V, 100% load row: 39.5 dB(A) at 1679 rpm fan speed, ambient about 30 C.","cables":"Cables and Connectors table: ATX 600 mm 18AWG, EPS 4+4 640 mm 18AWG (2 cables), 6+2 PCIe 590 mm plus 140 mm on two cables with two plugs each plus one single 590 mm cable (5 plugs, all 18AWG), 12+4 pin PCIe 645 mm (600W) 16-24AWG, SATA 450 mm then 120 mm then 120 mm on 3 cables (9 plugs), 4-pin Molex 440 mm then 110 mm then 110 mm on 1 cable (3 plugs). The stored lengths are the maker's lengths from the retail box. Cybenetics measured slightly shorter cables. The 16-24AWG range includes the thin sideband wires.","protections":"Protection Features (Manufacturer) lists OPP, OCP (+12V), OTP, SCP, surge protection and inrush current protection. Fan failure protection is not ticked. The protection tests tick NLO and show SIP: surge MOV, inrush NTC and bypass relay.","fan_size_mm":"Parts Description: RL4Z S1352512EH-3M, 135 mm, 12V, 0.50A.","fan_bearing":"Parts Description: Fluid Dynamic Bearing Fan.","psu_w":"DUT Information: Rated Power 850 W. The Power Specifications table gives a total maximum power of 850 W."}},{"url":"https://www.clearesult.com/80plus/sites/80plus/files/manufacturer-certificate/ASROCK_SL-850G_850W_SOCE%207601_Report_0.pdf","kind":"certification_list","accessed":"2026-10-14","fields":["efficiency_80_plus"],"notes":{"efficiency_80_plus":"80 PLUS list entry ID 7601, model SL-850G, 850W, 80 PLUS Platinum, tested 10/10/2024 at 115V nominal and 60 Hz (typical efficiency at 50% load 92.18%). ASRock's box and spec sheet claim 80 PLUS Gold, so the listing level is stored. The SL-850GW has its own Platinum entry, ID 14023."}}],"fields_filled":50,"updated":"2026-10-16"},"meta":{"api_version":"1","docs":"https://arkivo.dev/api"}}