{"data":{"slug":"asus-rog-strix-b850-a-gaming-wifi","type":"motherboard","brand":"ASUS","name":"ROG STRIX B850-A GAMING WIFI","aliases":["ROG Strix B850-A Gaming WiFi","Strix B850-A Gaming WiFi","B850-A GAMING WIFI"],"release_date":"2025-01","url":"https://arkivo.dev/motherboards/asus-rog-strix-b850-a-gaming-wifi","specs":{"series":"ROG Strix","model_numbers":["ROG STRIX B850-A GAMING WIFI","90MB1J50-M0AAY0","90MB1J50-M0EAY0"],"gtins":["197105772670","4711387772676"],"announce_date":"2025-01-06","status":"available","predecessor":null,"successor":null,"launch_price_usd":null,"launch_price_eur":null,"markets":null,"colors":null,"manufacturer_url":"https://rog.asus.com/motherboards/rog-strix/rog-strix-b850-a-gaming-wifi/","spec_sheet_url":"https://rog.asus.com/motherboards/rog-strix/rog-strix-b850-a-gaming-wifi/spec/","manual_url":"https://dlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-A_GAMING_WIFI/E26438_ROG_STRIX_B850-A_GAMING_WIFI_EM_v3_WEB.pdf","eprel_registration_number":null,"warranty_years":3,"segment":"gaming","board_revision":null,"cpu_socket":"AM5","motherboard_chipset":"AMD B850","supported_cpu_series":["AMD Ryzen 9000 Series","AMD Ryzen 8000 Series","AMD Ryzen 7000 Series"],"cpu_overclocking":true,"motherboard_form_factor":"atx","dimensions_mm":{"width_mm":244,"height_mm":305},"pcb_layers":8,"back_connect_design":false,"rgb_lighting":true,"vrm_layout":"14+2+2","vrm_vcore_power_stages":14,"vrm_vcore_stage_rating_a":80,"vrm_controller":null,"cpu_power_connectors":"8+8 pin","supplemental_pcie_power":false,"ram_type":"ddr5","ram_slot_count":4,"ram_max_gb":256,"ram_max_speed_mts":8000,"ram_ecc":true,"cudimm_support":null,"expansion_slots":[{"slot_type":"pcie_x16","electrical_lanes":16,"pcie_gen":5,"connected_to":"cpu","count":1},{"slot_type":"pcie_x16","electrical_lanes":4,"pcie_gen":4,"connected_to":"chipset","count":1}],"pcie_x16_slot_count":2,"pcie_x16_gen_max":5,"m2_slots":[{"slot":"M.2_1","pcie_gen":5,"pcie_lanes":4,"connected_to":"cpu","form_factor":"m2_2280","sata":false,"heatsink":true,"shares_lanes_with":null},{"slot":"M.2_2","pcie_gen":4,"pcie_lanes":4,"connected_to":"cpu","form_factor":"m2_22110","sata":false,"heatsink":true,"shares_lanes_with":null},{"slot":"M.2_3","pcie_gen":4,"pcie_lanes":4,"connected_to":"chipset","form_factor":"m2_2280","sata":false,"heatsink":true,"shares_lanes_with":"M.2_3 is disabled when the PCIEX16(G4) slot is used"},{"slot":"M.2_4","pcie_gen":4,"pcie_lanes":4,"connected_to":"chipset","form_factor":"m2_2280","sata":false,"heatsink":true,"shares_lanes_with":null}],"m2_slot_count":4,"m2_pcie5_slot_count":1,"sata_port_count":2,"rear_ports":[{"type":"usb_c","version":"USB 3.2 Gen 2x2","count":1,"max_gbps":20,"tb_usb4":null,"power_out_w":null,"dp_alt_mode":null},{"type":"usb_c","version":"USB 3.2 Gen 2","count":1,"max_gbps":10,"tb_usb4":null,"power_out_w":15,"dp_alt_mode":null},{"type":"usb_a","version":"USB 3.2 Gen 2","count":2,"max_gbps":10,"tb_usb4":null,"power_out_w":null,"dp_alt_mode":null},{"type":"usb_a","version":"USB 3.2 Gen 1","count":4,"max_gbps":5,"tb_usb4":null,"power_out_w":null,"dp_alt_mode":null},{"type":"usb_a","version":"USB 2.0","count":2,"max_gbps":0.48,"tb_usb4":null,"power_out_w":null,"dp_alt_mode":null},{"type":"hdmi","version":"HDMI 2.1","count":1,"max_gbps":null,"tb_usb4":null,"power_out_w":null,"dp_alt_mode":null},{"type":"displayport","version":"DisplayPort 1.4","count":1,"max_gbps":null,"tb_usb4":null,"power_out_w":null,"dp_alt_mode":null},{"type":"rj45","version":null,"count":1,"max_gbps":2.5,"tb_usb4":null,"power_out_w":null,"dp_alt_mode":null},{"type":"audio_3_5mm","version":null,"count":2,"max_gbps":null,"tb_usb4":null,"power_out_w":null,"dp_alt_mode":null},{"type":"optical_spdif","version":null,"count":1,"max_gbps":null,"tb_usb4":null,"power_out_w":null,"dp_alt_mode":null}],"rear_usb_count":10,"rear_usb_c_count":2,"rear_usb_max_gbps":20,"has_thunderbolt":null,"usb_headers":[{"connector":"usb_c","max_gbps":10,"count":1,"ports":1,"power_out_w":null},{"connector":"usb_3","max_gbps":5,"count":1,"ports":2,"power_out_w":null},{"connector":"usb_2","max_gbps":0.48,"count":2,"ports":4,"power_out_w":null}],"usb_c_header_max_gbps":10,"fan_header_count":7,"argb_header_count":3,"rgb_header_count":0,"ethernet_controllers":["Intel I226"],"ethernet_port_count":1,"ethernet_max_gbps":2.5,"wifi":true,"wifi_standard":"wifi_7","wifi_bands":["2.4ghz","5ghz","6ghz"],"wifi_max_channel_width_mhz":160,"wifi_module":"MediaTek MT7925","bluetooth_version":"5.4","audio_codec":"Realtek ALC4080","dac_chip":null,"bios_flashback":true,"clear_cmos_button":true,"post_code_display":false,"onboard_power_button":true,"dual_bios":null,"preinstalled_io_shield":true,"tool_free_features":["m2_latch","m2_heatsink","pcie_release","antenna_connector"],"measured_vrm_temp_c":null,"measured_power_idle_w":null,"measured_power_cpu_stress_w":null,"in_the_box":["2 x SATA 6Gb/s cables","1 x ASUS WiFi Q-Antenna","1 x Cable ties package","1 x M.2 Q-Latch package","1 x M.2 Q-Slide package","1 x ROG key chain","1 x ROG Strix stickers","4 x M.2 rubbers","1 x Quick start guide"]},"variants":[],"sources":[{"url":"https://rog.asus.com/motherboards/rog-strix/rog-strix-b850-a-gaming-wifi/spec/","kind":"manufacturer_page","accessed":"2026-10-14","fields":["spec_sheet_url","model_numbers","cpu_socket","motherboard_chipset","supported_cpu_series","motherboard_form_factor","dimensions_mm","cpu_power_connectors","supplemental_pcie_power","ram_type","ram_slot_count","ram_max_gb","ram_max_speed_mts","ram_ecc","expansion_slots","m2_slots","sata_port_count","rear_ports","usb_headers","fan_header_count","argb_header_count","wifi","wifi_standard","wifi_bands","wifi_max_channel_width_mhz","bluetooth_version","audio_codec","bios_flashback","clear_cmos_button","onboard_power_button","preinstalled_io_shield","tool_free_features","in_the_box"],"notes":{"model_numbers":"The page's order configuration id is 90MB1J50-M0AAY0. Paradigit lists 90MB1J50-M0EAY0 for the same board.","supported_cpu_series":"AM5 for Ryzen 9000, 8000 and 7000 Series. The page refers to the ASUS download center for the CPU support list. Read on 2026-10-14.","motherboard_form_factor":"ATX form factor.","dimensions_mm":"12 inch x 9.6 inch (30.5 cm x 24.4 cm).","cpu_power_connectors":"Power related connectors: 1 x 24-pin main power and 2 x 8-pin +12V CPU power.","supplemental_pcie_power":"The power related connector list has no extra slot power connector. The page never states that one is absent.","ram_max_gb":"The page says max. 256GB. Tech-Critter's January 2025 hands-on text says 192GB. The page and the June 2025 manual say 256 GB and are stored.","ram_max_speed_mts":"Up to 8000+ MT/s (OC) with Ryzen 9000, 8000 and 7000 Series. The Ryzen 9000 value is stored. The overview page image text also shows 8400+.","ram_ecc":"The page says ECC and Non-ECC, Un-buffered DIMM. The footnote says non-ECC DDR5 supports on-die ECC. The maker does not say how ECC works with each CPU.","expansion_slots":"Ryzen 9000 and 7000: 1 x PCIe 5.0 x16 slot. Ryzen 8000: the same slot runs PCIe 4.0 at x8 or x4. B850 chipset: 1 x PCIe 4.0 x16 slot at x4, which shares bandwidth with M.2_3. Stored with Ryzen 9000.","m2_slots":"Total 4 x M.2 (Key M). Ryzen 9000 and 7000: M.2_1 type 2242/2260/2280 PCIe 5.0 x4 and M.2_2 type 2280/22110 PCIe 4.0 x4. Ryzen 8000: M.2_1 runs PCIe 4.0 x4 and M.2_2 runs PCIe 4.0 x4 or x2. Chipset: M.2_3 and M.2_4 type 2280 PCIe 4.0 x4. The page lists no M.2 SATA support, so sata is false for every slot. M.2_3 is disabled while PCIEX16(G4) is in use.","sata_port_count":"2 x SATA 6Gb/s ports. AMD RAIDXpert2 is listed for 9000, 8000 and 7000.","rear_ports":"Back panel list: 1 USB 20Gbps (Type-C), 3 USB 10Gbps (2 Type-A and 1 Type-C), 4 USB 5Gbps (Type-A), 2 USB 2.0 (Type-A), 1 DisplayPort (max 8K@30Hz as specified in DisplayPort 1.4), 1 HDMI (4K@60Hz as specified in HDMI 2.1), 1 Wi-Fi module, 1 Intel 2.5Gb Ethernet, 2 audio jacks and 1 optical S/PDIF out. ASUS names USB by speed, so 20Gbps is stored as USB 3.2 Gen 2x2, 10Gbps as USB 3.2 Gen 2 and 5Gbps as USB 3.2 Gen 1. The footnote says USB Type-C power delivery output max 5V/3A, which sits on the 10Gbps Type-C line and is stored as 15 W. The overview page also says USB 10Gbps with up to 30W PD fast-charge. The spec page and the manual say 5V/3A and are stored. The Wi-Fi module and the two buttons are not ports.","usb_headers":"Front USB (total 7 ports): 1 x USB 10Gbps connector (supports USB Type-C), 1 x USB 5Gbps header for 2 ports and 2 x USB 2.0 headers for 4 ports. The Thunderbolt (USB4) header is for an add-in card and is not listed.","fan_header_count":"1 CPU fan, 1 CPU OPT fan, 1 AIO pump and 4 chassis fan headers, all 4-pin.","argb_header_count":"3 x Addressable Gen 2 headers.","wifi":"A Wi-Fi module is listed on the back panel (1 x Wi-Fi module).","wifi_standard":"2x2 Wi-Fi 7 (802.11be).","wifi_bands":"Supports 2.4/5/6GHz frequency band. The 6 GHz band and bandwidth vary by country.","wifi_max_channel_width_mhz":"Supports Wi-Fi 7 160MHz bandwidth, up to 2.9Gbps. The overview page also says 160 MHz channels on 6GHz.","bluetooth_version":"Bluetooth v5.4. The page says the version may vary and refers to the Wi-Fi module maker.","audio_codec":"ROG SupremeFX 7.1 Surround Sound High Definition Audio CODEC ALC4080 with a Savitech SV3H712 amplifier. The Savitech part is an amplifier and is not stored as a DAC.","bios_flashback":"BIOS FlashBack button on the back panel.","clear_cmos_button":"Clear CMOS button on the back panel.","onboard_power_button":"Internal connectors, miscellaneous: 1 x Power button.","preinstalled_io_shield":"ASUS EZ DIY list: Pre-mounted I/O shield.","tool_free_features":"ASUS Q-Design: M.2 Q-Latch, M.2 Q-Release, M.2 Q-Slide, PCIe Slot Q-Release Slim and Q-Antenna.","in_the_box":"Accessories list on the specification page, the same as the manual's package contents."}},{"url":"https://rog.asus.com/motherboards/rog-strix/rog-strix-b850-a-gaming-wifi/","kind":"manufacturer_page","accessed":"2026-10-14","fields":["manufacturer_url","series","segment","pcb_layers","rgb_lighting","vrm_layout","vrm_vcore_power_stages","vrm_vcore_stage_rating_a","m2_slots","tool_free_features"],"notes":{"series":"ROG Strix is the ASUS line in the product name. The page sits in the ROG Strix motherboard family.","segment":"The page sits under ROG gaming motherboards (breadcrumb Gaming Motherboards).","pcb_layers":"Overview page: eight-layer PCB. The page also describes a white PCB.","rgb_lighting":"The page describes subtle RGB lighting on the I/O shroud and ASUS Aura lighting.","vrm_layout":"14(80A)+2(80A)+2(80A) power stages: 14 Vcore, 2 SoC and 2 MISC.","vrm_vcore_power_stages":"The VRM features 14+2+2 power stages.","vrm_vcore_stage_rating_a":"Each of the 14 Vcore stages is rated 80 A. The SoC and MISC stages are also 80 A. One product image alt text on the page says 110 amps and the body text says 80 A. The 80 A figure is stored.","m2_slots":"Overview: 4 x M.2 slots, 1 x 2280 PCIe 5.0 x4, 2 x 2280 PCIe 4.0 x4 and 1 x 22110 PCIe 4.0 x4. 4 x M.2 heatsinks, with every M.2 slot covered, plus an M.2 backplate.","tool_free_features":"Q-Release lets the M.2 heatsink come off with a switch and no tiny screws. Q-Latch installs M.2 SSDs with one press. PCIe Slot Q-Release Slim unlocks the card by tilting it. Q-Antenna snaps the Wi-Fi antenna into place."}},{"url":"https://dlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-A_GAMING_WIFI/E26438_ROG_STRIX_B850-A_GAMING_WIFI_EM_v3_WEB.pdf","kind":"manual","accessed":"2026-10-14","fields":["manual_url","back_connect_design","post_code_display","expansion_slots","m2_slots","usb_headers","rgb_header_count","onboard_power_button"],"notes":{"manual_url":"ASUS user guide E26438, Revised Edition v3, June 2025, from dlcdnets.asus.com.","back_connect_design":"The layout in chapter 1 shows the usual front-side power, fan and USB connectors. The board is not a back-connect design.","post_code_display":"The layout contents list Q-LEDs (CPU, DRAM, VGA and boot device), a BIOS FlashBack LED and an 8-pin CPU power plug LED. No two-digit code display is listed in the specification summary or the layout. The manual never states that it is absent.","expansion_slots":"The layout shows PCIEX16(G5) and PCIEX16(G4) as the only two expansion slots.","m2_slots":"The specification summary matches the page. M.2_3 shares bandwidth with PCIEX16(G4) and is disabled while that slot works. The manual lists M.2 types and PCIe modes only.","usb_headers":"Layout contents: 8. USB 10Gbps Type-C front panel connector, 9. USB 5Gbps header, 10. USB 2.0 header (two).","rgb_header_count":"The internal connector list names only 3 x Addressable Gen2 headers and no 4-pin RGB header.","onboard_power_button":"Layout item 14: Start button, which powers up the system."}},{"url":"https://press.asus.com/news/press-releases/asus-amd-x870e-b850-b840-rog-strix-tuf-prime-motherboards","kind":"press_release","accessed":"2026-10-14","fields":["announce_date","release_date"],"notes":{"announce_date":"ASUS press release of 2025-01-06 introduces the ROG Strix B850-A Gaming WiFi.","release_date":"The press release gives no on-sale date for the B850 boards. A hands-on test appeared the same day and retail followed in January 2025. The month is approximate."}},{"url":"https://www.tech-critter.com/rog-strix-b850-a-gaming-wifi-hands-on-test/","kind":"review_site","accessed":"2026-10-14","fields":["release_date"],"notes":{"release_date":"Hands-on test published 2025-01-06 with a retail sample. The date fits the launch month."}},{"url":"https://www.chip.pl/2025/11/asus-rog-strix-b850-a-gaming-wifi-test-recenzja-opinia","kind":"review_site","accessed":"2026-10-14","fields":["ethernet_controllers","wifi_module","rgb_header_count","rgb_lighting"],"notes":{"ethernet_controllers":"The review names an Intel I226-V 2.5 Gb Ethernet chip. ASUS writes only Intel 2.5Gb Ethernet. The -V suffix is dropped.","wifi_module":"The review names Wi-Fi 7 MediaTek MT7925 with Bluetooth 5.4. ASUS does not name the module. The 160 MHz and 2.9 Gbps figures on the ASUS page fit this module.","rgb_header_count":"The reviewer writes that the board has three ARGB headers and no RGB header.","rgb_lighting":"The review describes a lit ROG logo on the I/O shroud."}},{"url":"https://www.amd.com/en/products/processors/chipsets/am5.html","kind":"manufacturer_page","accessed":"2026-10-14","fields":["cpu_overclocking"],"notes":{"cpu_overclocking":"AMD describes the B850 platform with enhanced overclocking capabilities, and its chipset table lists CPU overclocking as Yes for B850. This is the chip maker's page and not the board maker's. ASUS also describes PBO enhancement and overclocking headroom for this board."}},{"url":"https://www.amazon.com/dp/B0DPLP33YR","kind":"retailer","accessed":"2026-10-14","fields":["gtins","warranty_years","status"],"notes":{"gtins":"The Amazon US listing for ASIN B0DPLP33YR gives UPC 197105772670 and Mfr Part Number ROG STRIX B850-A GAMING WIFI.","warranty_years":"Warranty Description: 3 Years (US listing).","status":"The listing is in stock on 2026-10-14 at best sellers rank 3 in Computer Motherboards."}},{"url":"https://www.scan.co.uk/products/asus-rog-strix-b850-a-gaming-wifi","kind":"retailer","accessed":"2026-10-14","fields":["gtins","warranty_years"],"notes":{"gtins":"Scan UK lists GTIN 4711387772676.","warranty_years":"Scan UK: 36 months return to base."}},{"url":"https://www.buildcores.com/products/Motherboard/xy81tonxw/ASUS-ROG-STRIX-B850-A-GAMING-WIFI","kind":"spec_database","accessed":"2026-10-14","fields":["gtins","status","back_connect_design","rgb_header_count"],"notes":{"gtins":"BuildCores lists UPC 197105772670 and 197105983472 and EAN 4711387772676. 197105983472 is not stored, since no page ties it to this model.","status":"BuildCores shows US retailers in stock on 2026-10-14 (Amazon, Best Buy, Newegg, Walmart).","back_connect_design":"Back-Connect Connectors: No.","rgb_header_count":"RGB 12V Headers: 0 and ARGB 5V Headers: 3."}},{"url":"https://www.paradigit.ie/asus-rog-strix-b850-a-gaming-wifi/21754542/product","kind":"retailer","accessed":"2026-10-14","fields":["model_numbers"],"notes":{"model_numbers":"Paradigit lists product number manufacturer 90MB1J50-M0EAY0 for the board."}}],"fields_filled":62,"updated":"2026-10-16"},"meta":{"api_version":"1","docs":"https://arkivo.dev/api"}}