{"data":{"slug":"seasonic-core-gx-850-2024","type":"power_supply","brand":"Seasonic","name":"CORE GX-850 (2024)","aliases":["CORE GX-850 ATX 3.1","CORE GX ATX 3 (2024) 850W","CORE V2 GX-850","CORE GX-850 V2","CORE ATX 3 GX-850","SRP-CGX851-A5A32SF","SRP-CGX851-A5A32SF-W"],"release_date":"2024-12","url":"https://arkivo.dev/power-supplies/seasonic-core-gx-850-2024","specs":{"series":"CORE GX","model_numbers":["SRP-CGX851-A5A32SF","SRP-CGX851-A5A32SF-W"],"gtins":["4711173878476","4711173878728"],"announce_date":"2024-12-06","status":"available","predecessor":null,"successor":null,"launch_price_usd":null,"launch_price_eur":null,"markets":["US","EU"],"colors":["Black","White"],"manufacturer_url":"https://seasonic.com/core-gx-atx-3-2024/","spec_sheet_url":null,"manual_url":null,"eprel_registration_number":null,"warranty_years":7,"psu_standard":"atx","psu_atx_version":"atx_3_1","pcie_cem_version":"pcie_5_1","psu_modular":"full","oem_manufacturer":"Seasonic","psu_w":850,"rated_power_temp_c":40,"rail_12v_design":"single","rail_12v_current_a":70,"rail_12v_power_w":840,"minor_rails_combined_w":100,"rail_5vsb_current_a":3,"ac_input_voltage":{"min_v":100,"max_v":240},"alpm_support":true,"efficiency_80_plus":"80_plus_gold","cybenetics_efficiency_115v":"cybenetics_platinum","cybenetics_efficiency_230v":"cybenetics_platinum","cybenetics_noise_115v":"a_minus","cybenetics_noise_230v":"a_minus","measured_avg_efficiency_115v_pct":89.073,"measured_avg_efficiency_230v_pct":91.095,"measured_light_load_efficiency_115v_pct":71.934,"measured_avg_power_factor_115v":0.977,"measured_avg_noise_115v_dba":28.17,"measured_noise_full_load_115v_dba":43.7,"measured_vampire_power_115v_w":0.0665,"measured_hold_up_time_ms":18,"measured_ripple_12v_mv":28.89,"measured_load_regulation_12v_pct":1.14,"cables":[{"connector":"atx_24pin","count":1,"cable_count":1,"length_mm":610,"gauge_awg":"16-18AWG","rated_power_w":null},{"connector":"eps_8pin","count":2,"cable_count":2,"length_mm":750,"gauge_awg":"16AWG","rated_power_w":null},{"connector":"pcie_8pin","count":1,"cable_count":1,"length_mm":750,"gauge_awg":"16-18AWG","rated_power_w":null},{"connector":"pcie_8pin","count":2,"cable_count":1,"length_mm":700,"gauge_awg":"16-18AWG","rated_power_w":null},{"connector":"12v_2x6","count":1,"cable_count":1,"length_mm":700,"gauge_awg":"16AWG","rated_power_w":600},{"connector":"sata","count":6,"cable_count":2,"length_mm":455,"gauge_awg":"18AWG","rated_power_w":null},{"connector":"molex","count":3,"cable_count":1,"length_mm":455,"gauge_awg":"18AWG","rated_power_w":null}],"eps_connector_count":2,"pcie_8pin_connector_count":3,"gpu_16pin_connector_count":1,"sata_connector_count":6,"molex_connector_count":3,"cable_style":"sleeved","fan_size_mm":120,"fan_bearing":"hydrodynamic","fan_mode":"always_on","fan_mode_switch":false,"protections":["ocp","ovp","uvp","opp","otp","scp","nlo","sip"],"all_japanese_capacitors":null,"mtbf_h":100000,"software_monitoring":null,"software_name":null,"power_display":null,"rgb_lighting":false,"dimensions_mm":{"width_mm":150,"height_mm":86,"depth_mm":140},"weight_kg":null,"in_the_box":["Cable ties","Screws for mounting","Regional specific power cable","Literature"]},"variants":[{"model_number":"SRP-CGX851-A5A32SF","gtin":"4711173878476","colors":["Black"],"markets":["US","EU"],"launch_price_usd":129.99,"launch_price_eur":129.9},{"model_number":"SRP-CGX851-A5A32SF-W","gtin":"4711173878728","colors":["White"]}],"sources":[{"url":"https://seasonic.com/core-gx-atx-3-2024/","kind":"manufacturer_page","accessed":"2026-10-15","fields":["manufacturer_url"],"notes":{"manufacturer_url":"Seasonic's site is blocked for agents, so the page text was not read. The link is the CORE GX ATX 3.1 family page that search results name for this unit. The specs come from Seasonic's launch release, retailer copies of Seasonic's spec table, a cable slide printed in a review, the 80 PLUS list and the Cybenetics report."}},{"url":"https://www.funkykit.com/news/seasonic-launches-updated-core-atx-3-psu-series-with-atx-3-1-and-pcie-gen-5-1/","kind":"press_release","accessed":"2026-10-15","fields":["release_date","announce_date","series","psu_atx_version","pcie_cem_version","psu_modular","fan_size_mm","fan_bearing","warranty_years","colors","variants","markets"],"notes":{"release_date":"Seasonic's launch release, posted by Funky Kit on December 6, 2024. Estimated time to market was late December 2024 for the black version in Europe, January 2025 in the USA and Q4 2024 for the rest of the world. LDLC listed the unit on December 5, 2024 and KitGuru reviewed the 850W on December 31, 2024.","announce_date":"Press release dated December 6, 2024.","series":"The release calls the family the CORE GX ATX 3 series, in four outputs from 1000 W to 650 W.","psu_atx_version":"The units comply with the latest ATX 3.1 and PCIe Gen 5.1 standards.","pcie_cem_version":"The units comply with PCIe Gen 5.1.","psu_modular":"80 Plus Gold certified units with a fully modular design and color-matching cables with a braided pattern.","fan_size_mm":"A 120 mm hydro dynamic bearing fan with Seasonic's Smart and Silent Fan Control.","fan_bearing":"Hydro dynamic bearing fan, 120 mm.","warranty_years":"Sea Sonic's 7-year worldwide manufacturer's warranty.","colors":"Available in black and white.","variants":"Launch MSRP of the black CORE ATX 3 GX-850, US: 129.99 USD, excluding sales tax. EU: 129.90 EUR, as published with no country or tax treatment named. The rest of world price is 119.99 USD. The white GX-850 is build to order in the USA with no US price, a rest of world price of 129.99 USD and no EU price, and it ships in late February 2025 in Europe. Seasonic says MSRP is for reference only. The white row has no price.","markets":"The release lists a USA price and an EU price for the black unit and a rest of the world price that names no country. Only US and EU are stored."}},{"url":"https://eshop.enzure.se/seasonic-850w-seasonic-core-srp-cgx851-a5a32sf/cat-p/c/p1005186250","kind":"retailer","accessed":"2026-10-15","fields":["model_numbers","gtins","status","psu_standard","psu_w","rated_power_temp_c","rail_12v_current_a","rail_5vsb_current_a","ac_input_voltage","cable_style","fan_size_mm","fan_bearing","protections","mtbf_h","warranty_years","dimensions_mm"],"notes":{"model_numbers":"Article number SRP-CGX851-A5A32SF, the black unit.","gtins":"EAN 4711173878476 for SRP-CGX851-A5A32SF (black). The check digit is valid.","status":"The page lists the black unit in stock with 2 pieces.","psu_standard":"The page copies Seasonic's spec table. Form Factor ATX/EPS, 140 x 150 x 86 mm, which is the ATX back face of 150 x 86 mm.","psu_w":"Total continuous power 850 W.","rated_power_temp_c":"Operating Temperature 0 - 50 C, with derating from 100 % to 80 % linearly from 40 C to 50 C. Full power is therefore rated up to 40 C.","rail_12v_current_a":"DC output: +3.3 V 20 A, +5 V 20 A, +12 V 70 A, -12 V 0.3 A, +5 VSB 3 A.","rail_5vsb_current_a":"DC output: +5 VSB 3 A.","ac_input_voltage":"AC input 100 V - 240 V, 11 - 5.5 A, 50 Hz - 60 Hz.","cable_style":"Cable type: Individual Black Cables with Braided Pattern.","fan_size_mm":"Fan Size 120 mm, Fan Control Smart and Silent Fan Control, life expectancy 25,000 hours at 40 C.","fan_bearing":"Fan Bearing: Hydro Dynamic Bearing.","protections":"Protection: OPP, OCP, OTP, OVP, SCP, UVP.","mtbf_h":"MTBF at 25 C, excluding the fan: 100,000 hours.","warranty_years":"Warranty 7 Years.","dimensions_mm":"140 mm (L) x 150 mm (W) x 86 mm (H). Depth 140, width 150, height 86. The page lists the Cybenetics levels as TBA, so those fields come from the Cybenetics report."}},{"url":"https://inside-tech.co.uk/power-supplies-2/seasonic-core-gx-v4-850w-80-plus-gold-atx-3-1-modular-psu-with-120mm-fdb-fan-braided-cables-7-year-warranty-black/","kind":"retailer","accessed":"2026-10-15","fields":["rail_12v_power_w","minor_rails_combined_w","rated_power_temp_c","mtbf_h","ac_input_voltage"],"notes":{"rail_12v_power_w":"The page copies Seasonic's spec table. DC output maximum power: +12 V 840 W, with 100 W, 3.6 W and 15 W for the other rows. The listing text names the white version.","minor_rails_combined_w":"Power output row prints 100 W once for the +3.3 V and +5 V rails, so it is one shared limit.","rated_power_temp_c":"Operating Temperature 0 - 50 C (derating from 100 % to 80 % from 40 C to 50 C linearly).","mtbf_h":"MTBF at 25 C, excl. fan 100,000 hours.","ac_input_voltage":"AC input 100 V - 240 V, 11 - 5.5 A, 50 Hz - 60 Hz."}},{"url":"https://www.kitguru.net/components/power-supplies/zardon/seasonic-core-gx-850-atx-3-review/","kind":"review_site","accessed":"2026-10-15","fields":["cables","cable_style","fan_size_mm","fan_bearing","fan_mode","fan_mode_switch","protections","rail_12v_current_a","dimensions_mm","warranty_years","in_the_box"],"notes":{"cables":"Page 2 shows Seasonic's Cable Summary slide for the CORE GX ATX 3, 850 W column: MB 610 mm 1 cable with 20+4 pins, CPU 750 mm 2 cables with 4+4 pins, 12V-2x6 700 mm 1 cable, PCIe 750 mm 1 cable with 6+2 pins, PCIe 700 mm 1 cable with 16 pins to 2 x 6+2 pins, SATA 750 mm 2 cables with 3 connectors, Molex 690 mm 1 cable with 3 connectors. The review says both connector types support up to 600 W. The SATA and Molex lengths run to the last plug, so the first-plug lengths come from the Cybenetics report (455 mm for both). The page 3 photo of the modular panel shows one 12-pin PCIe socket, so the 16-pin to dual 8-pin cable shares that socket with the native 12V-2x6 cable. Wire gauges come from Cybenetics.","cable_style":"The cables are individually braided.","fan_size_mm":"Page 4: Hong Hua 120 mm Hydro (Fluid) Dynamic Bearing fan, 12 V, 0.58 A, up to 2,200 rpm, model HA1225H12F-Z.","fan_bearing":"Page 4: Hong Hua 120mm Hydro (Fluid) Dynamic Bearing (HDB).","fan_mode":"Page 3: no Hybrid fan control is offered with this unit. The fan spins very slowly at low power and the unit is not audible below about 650 W. Some retailers print a semi-fanless row. Quiet PC copies the same row for the 650, 750 and 850 W columns, even printing 850 W power output in the 650 W column, so it is not used.","fan_mode_switch":"Page 3: no Hybrid fan control is offered. The unit has no fan mode switch.","protections":"Page 4: OPP, OVP, UVP, OCP, OTP and SCP.","rail_12v_current_a":"Page 3: the +12V rail can deliver 70 A and the +3.3V and +5V 20 A, for a total of 850 W.","dimensions_mm":"Page 3: 140 mm x 150 mm x 86 mm.","warranty_years":"Closing page: the Core GX range comes with a 7 year warranty.","in_the_box":"Page 2: the box contains some cable ties, screws for mounting, a regional specific power cable and some literature, with the cables set to one side. Review dated December 31, 2024."}},{"url":"https://www.cybenetics.com/evaluations/psus/2750/","kind":"measurement","accessed":"2026-10-15","fields":["oem_manufacturer","rail_12v_design","rail_12v_current_a","rail_12v_power_w","minor_rails_combined_w","rail_5vsb_current_a","ac_input_voltage","alpm_support","psu_w","psu_modular","psu_standard","fan_bearing","fan_size_mm","fan_mode","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_noise_full_load_115v_dba","measured_vampire_power_115v_w","measured_hold_up_time_ms","measured_ripple_12v_mv","measured_load_regulation_12v_pct","cables","protections"],"notes":{"oem_manufacturer":"DUT Information: OEM/ODM Seasonic. Parts Description: Manufacturer (OEM) Seasonic.","rail_12v_design":"Power Specifications: one +12V column with 70 A and 840 W, and one 12V OCP result.","rail_12v_current_a":"Power Specifications table: +12V 70 A.","rail_12v_power_w":"Power Specifications table: +12V 840 W.","minor_rails_combined_w":"Power Specifications table: one merged 100 W cell for 3.3V and 5V, 20 A each.","rail_5vsb_current_a":"Power Specifications table: 5VSB 3 A, 15 W.","ac_input_voltage":"Manufacturer-provided information: 100-240 Vrms, 5.5-11 A, 50-60 Hz.","alpm_support":"Temperature and Compliance Info: ALPM compatible, checked.","psu_w":"Manufacturer-provided information: Rated Power 850 W.","psu_modular":"Cable Design Fully Modular.","psu_standard":"Type ATX12V.","fan_bearing":"Fan Hong Hua HA1225H12F-Z, 120 mm, 12 V, 0.58 A, listed as a Fluid Dynamic Bearing fan. Seasonic names it a Hydro Dynamic Bearing.","fan_size_mm":"Fan Hong Hua HA1225H12F-Z, 120 mm.","fan_mode":"Semi-Passive Operation is not ticked. The typical load tests show 836 rpm at 10 percent load and 833 rpm at 20 percent, so the fan always spins.","cybenetics_efficiency_115v":"Report issued Mar 6, 2025, lab ID SS85002750. The database name is Core GX-850 ATX3 and the report has no sample serial. The database lists ETA Platinum at 115V. The sample has the fan, capacitors and cable set of the CORE GX-850 that KitGuru reviewed.","cybenetics_efficiency_230v":"The database lists ETA Platinum at 230V.","cybenetics_noise_115v":"The database lists LAMBDA A- at 115V. Seasonic's spec table said TBA at launch.","cybenetics_noise_230v":"The database lists LAMBDA A- at 230V.","measured_avg_efficiency_115v_pct":"Average over more than 1450 load combinations at 115V. Sample received Feb 11, 2025, tested Feb 20, 2025, ambient 28-32 C.","measured_avg_efficiency_230v_pct":"Average over more than 1450 load combinations at 230V.","measured_light_load_efficiency_115v_pct":"Efficiency at 2% load (more than 500 W unit) at 115V.","measured_avg_power_factor_115v":"Average over more than 1450 load combinations at 115V. At 230V it is 0.943.","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 28.19 dBA.","measured_noise_full_load_115v_dba":"Typical load tests at 115V, 100% load row: 43.7 dB(A) at 1729 rpm fan speed, 45.73 C intake temperature.","measured_vampire_power_115v_w":"Standby power consumption at 115V with no load on +5VSB: 0.0665 W. At 230V it is 0.1740 W.","measured_hold_up_time_ms":"Hold-Up Time and PWR_OK Signal: hold-up time 18.0 ms, AC loss to PWR_OK 14.7 ms.","measured_ripple_12v_mv":"Non-accredited. 12V ripple at full load at 115V. At 230V it is 29.48 mV.","measured_load_regulation_12v_pct":"Non-accredited. 12V load regulation at 115V. At 230V it is 1.13%.","cables":"Cables and Connectors table: ATX 20+4 pin 620 mm 16-18AWG, 2 x 4+4 pin EPS12V 750 mm 16AWG, one cable with 2 x 6+2 pin PCIe plugs 710 mm 16-18AWG, one 6+2 pin PCIe 750 mm 16-18AWG, 12+4 pin PCIe 700 mm (600W) 16-28AWG, 2 SATA cables of 455+155+155 mm with 6 plugs, one 4-pin Molex cable of 455+125+125 mm with 3 plugs, 18AWG, no in-cable capacitors. The 16-28AWG range of the 12V-2x6 cable includes the thin sideband wires, so the stored gauge is the 16AWG power wire. Seasonic's slide lengths are stored where they are first-plug lengths. Cybenetics measured 620 mm for the 24-pin cable and 710 mm for the dual 8-pin cable.","protections":"Protection Features (Manufacturer): OPP, +12V OCP, OTP, SCP, surge and inrush protection. The protection tests tick NLO and SIP (surge MOV, inrush NTC and bypass relay). Fan failure protection is not present. The report has no UVP row, so OVP and UVP come from the maker."}},{"url":"https://www.clearesult.com/80plus/sites/80plus/files/manufacturer-certificate/SEA%20SONIC%20ELECTRONICS%20CO.%20LTD._SRP-CGX851-A5A32SF_850W_SOCE%207565_Report_0.pdf","kind":"certification_list","accessed":"2026-10-15","fields":["efficiency_80_plus","psu_atx_version"],"notes":{"efficiency_80_plus":"80 PLUS ID 7565, model SRP-CGX851-A5A32SF, 850 W, Gold at 115V, certified 09/24/2024, 91.43 percent at 50 percent load. The list has no sample serial, so the match is by model code and wattage.","psu_atx_version":"The list names the form factor ATX 3.1."}},{"url":"https://www.ldlc.com/en/product/PB00657446.html","kind":"retailer","accessed":"2026-10-15","fields":["model_numbers","rgb_lighting","cables","dimensions_mm"],"notes":{"model_numbers":"Model SRP-CGX851-A5A32SF for the black Seasonic CORE GX ATX 3 (2024) 850 W. The page says the product was referenced on December 5, 2024.","rgb_lighting":"LED RGB: No.","cables":"Power connectors: 2 x +12V (P8, 2 x P4), 6 x Serial ATA, 1 x ATX 20+4 pin, 3 x Molex (4 pin), 3 x PCI Express 6+2 pin, 1 x PCI Express 16 pin (12V-2x6).","dimensions_mm":"Height 86 mm."}},{"url":"https://multitronic.fi/en/products/4589683/seasonic-core-gx-850w--virtalahde--80-plus-gold","kind":"retailer","accessed":"2026-10-15","fields":["gtins","variants"],"notes":{"gtins":"EAN 4711173878728, product colour white. The check digit is valid.","variants":"The white unit has its own EAN."}},{"url":"https://www.paradigit.ie/seasonic-core-gx-atx3-1-white-850-w/21750146/product","kind":"retailer","accessed":"2026-10-15","fields":["model_numbers","variants"],"notes":{"model_numbers":"Product number manufacturer SRP-CGX851-A5A32SF-W for the white unit.","variants":"White edition with model code SRP-CGX851-A5A32SF-W."}}],"fields_filled":54,"updated":"2026-10-15"},"meta":{"api_version":"1","docs":"https://arkivo.dev/api"}}