ASUS PRIME B850-PLUS WIFI AMD motherboard
- Ryzen 7000 Series /…
- AMD B850
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ASUS Open box
AM5 board with 18+2+2 110A stages, dual DDR5 slots to 9600 MT/s, three PCIe 5.0 M.2 slots, Wi-Fi 7, 5G LAN, USB4, ROG DIMM.2 card and memory fan kit
This ATX motherboard uses the AMD X870E chipset and AM5 socket for Ryzen 9000, 8000 and 7000 series CPUs. It suits enthusiasts who want a compact two-slot DDR5 layout with a dedicated ROG Memory Fan kit and a bundled ROG DIMM.2 card. Builders needing four DIMM slots or a larger M.2 count directly on the board should consider other models.
The board provides only two DDR5 slots with a maximum capacity of 128 GB. This limit determines whether the platform can meet your memory needs before you commit to the rest of the feature set.
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| Product | |
|---|---|
| Brand name | ASUS |
| Product line | ROG |
| Model name | ROG CROSSHAIR X870E APEX |
| Part number | 90MB1KR0-MVAAY0 |
| Processor | |
| Processor | AMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors* * Refer to https://www.asus.com/support/download-center/ for CPU support list. |
| CPU socket | AM5 |
| Chipset | AMD X870E |
| Memory | |
| Memory slot count | 2 × 288pin (DDR5) |
| Supported memory | 2 x DIMM slots, max. 128 GB, DDR5 Supports up to 8200+MT/s(OC) with Ryzen™ 9000 Series Processors, 9600+MT/s(OC) with Ryzen™ 8000 Series Processors 8000+MT/s(OC) with Ryzen™ 7000 Series Processors, ECC and Non-ECC, Un-buffered DIMM* Dual channel memory architecture Supports AMD Extended Profiles for Overclocking (EXPO™) ASUS Enhanced Memory Profile (AEMP) * Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information sit |
| Max supported RAM | 128 GB |
| ECC support | Non-ECC |
| Storage | |
| SATA ports | 4 x SATA 6Gb/s |
| M.2 slots | Supports 5 x M.2 slots and 4 x SATA 6Gb/s ports* AMD Ryzen™ 9000 & 7000 Series Desktop Processors*** M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode) M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode) M.2_3 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode) AMD Ryzen™ 8000 Series Desktop Processors M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode) M.2_2 slot (Key M), type 2242/2260/2280 (Not supports) M.2_3 slot (Key M), type 2242/2260/2280 (Not supports) AMD X870E Chipset DIMM.2_1 slot (Key M), type 2230/2242/2260/2280 |
| SATA and RAID support | 0/1/5/10 |
| Audio & video | |
| Sound channels | ROG SupremeFX 7.1 Surround Sound High Definition Audio CODEC ALC4080* - Impedance sense for front and rear headphone outputs - Supports: Jack-detection, Multi-streaming, Front Panel MIC Jack-retasking - High quality 120 dB SNR stereo playback output and 110 dB SNR recording input - Supports up to 32-Bit/384 kHz playback on front panel Audio Features - SupremeFX Shielding Technology - Savitech SV3H712 AMP - Gold-plated audio jacks - Rear optical S/PDIF out port - Premium audio capacitors - Audio cover * A chassis with an HD audio module in the front panel is required to support 7.1 Su |
| Connectivity | |
| Second LAN controller | 1 x Realtek 5Gb Ethernet ASUS LANGuard |
| Maximum network speed | 5 Gbit/s |
| Bluetooth support | Yes |
| Ports & slots | |
| PCIe 4.0 x16 slots | AMD Ryzen™ 8700 & 8600 & 8400 Series Desktop Processors* 2 x PCIe 4.0 x16 slots with Q-Release Slim (only supports PCIEx16_1 & total bandwidth for x8, PCIEx16_2 will be disabled) AMD Ryzen™ 8500 & 8300 Series Desktop Processors* 2 x PCIe 4.0 x16 slots with Q-Release Slim (only supports PCIEx16_1 & total bandwidth for x4, PCIEx16_2 will be disabled) AMD X870E Chipset 1 x PCIe 4.0 x4 slot 1 x PCIe 3.0 x1 slot * Please check the PCIe bifurcation table on the support site (https://www.asus.com/support/FAQ/1037507/). - To ensure compatibility of the device installed, please refer to https |
| Rear panel ports | 2 x USB4® (40 Gbit/s) ports (2 x USB Type-C®) 6 x USB 10 Gbit/s ports (5 x Type-A + 1 x USB Type-C®) 2 x USB 5 Gbit/s ports (2 x Type-A) 1 x Wi-Fi module 1 x Realtek 5Gb Ethernet port 1 x PS/2 keyboard/mouse combo port 2 x Gold-plated audio jacks 1 x Optical S/PDIF out port 1 x BIOS FlashBack™ button 1 x Clear CMOS button |
| Size & build | |
| Form factor | ATX |
| Width and length | 12 in × 9.6 in ( 30.5 cm × 24.4 cm ) |
| Shipping weight | 3.86 kg |
| Package size | 368 × 305 × 114 mm |
| Compatibility | |
| Windows 11 support | Supported |
It provides 18 Vcore stages rated at 110 A, plus two VCCGT stages at 110 A and two VSOC stages at 80 A, all fed by ProCool II connectors for stable delivery to Ryzen 9000, 8000 and 7000 CPUs.
Three onboard M.2 slots run at PCIe 5.0 x4, while two more on the DIMM.2 card run at PCIe 4.0 x4; actual throughput depends on the installed Ryzen processor generation.
Two DDR5 DIMM slots accept up to 128 GB total; the DIMM.2 card mounts vertically beside them and the memory fan clips onto the same area, so case height clearance must accommodate both.
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