ASUS PRIME B650M-A WIFI II-CSM AMD motherboard & Ryzen 9 9900X3D CPU combo
- AM5
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Socket AM5 motherboard paired with a 16-core Ryzen 9 9950X3D CPU, DDR5 memory support to 192 GB, PCIe 5.0 x16 slot, three M.2 2280 slots, Wi-Fi 6E, 2.5 Gb Ethernet, USB 10 Gbps Type-A and Type-C.
Model B650E MAX GAMING WIFI
CPU +Ryzen 9 9950X3D
This motherboard and CPU combination targets enthusiasts building high-performance AMD systems. The AM5 socket supports Ryzen 7000, 8000 and 9000 series processors. Four DDR5 slots accept up to 192GB of memory at speeds beyond 8000 MT/s when overclocked. The bundle delivers a ready-to-run platform for demanding workloads and gaming.
The board uses an 8+2+1 phase power design on a 6-layer PCB with alloy chokes and durable capacitors. VRM, M.2 and PCH heatsinks handle heat from the 170W CPU and fast storage. Hybrid fan headers and Fan Xpert 2+ software allow quiet fan curves at idle and light load. Realtek 2.5Gb Ethernet, Wi-Fi 6E and Bluetooth 5.3 add connectivity without extra cards.
Under prolonged load the enhanced power delivery maintains stable voltage to the 16-core processor with 128MB L3 cache and 16MB L2 cache. PCIe 5.0 x16 and PCIe 5.0 M.2 slots keep graphics and storage bandwidth high during extended sessions. Rear USB 10Gbps Type-A and Type-C ports sustain fast peripheral throughput. Aura Sync RGB headers remain configurable throughout heavy use.
Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.
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| Product | |
|---|---|
| Brand name | ASUS |
| Model name | B650E MAX GAMING WIFI+R9 9950 × 3D |
| Processor | |
| CPU socket | AM5 |
| Chipset | AMD B650 |
| Memory | |
| Memory slot count | 4 × 288pin (DDR5) |
| Supported memory | Up to 8000+MT/s (OC) |
| Max supported RAM | 192 GB |
| Memory channels | Dual Channel |
| ECC support | Yes |
| Buffering | Un-buffered |
| Storage | |
| SATA ports | 4 x SATA 6Gb/s |
| M.2 slots | AMD Ryzen 9000 & 7000 Series Desktop Processors M.2_1 slot (Key M), type 2280 (supports PCIe 5.0 x4 mode) M.2_2 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode) AMD Ryzen 8000 Series Desktop Processors M.2_1 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode) M.2_2 slot (Key M), type 2280 (supports PCIe 4.0 x4/x2 mode)* AMD B650 Chipset M.2_3 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 4.0 x2 mode) * Specifications vary by CPU types. |
| SATA and RAID support | 0/1/5/10 |
| Audio & video | |
| Sound channels | Realtek 7.1 Surround Sound High Definition Audio CODEC* - Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking - Supports up to 24-Bit/192 kHz playback Audio Features - Audio Shielding - Premium audio capacitors - Dedicated audio PCB layers * A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output. |
| Connectivity | |
| Maximum network speed | 2.5 Gbit/s |
| Wi-Fi standard | Wi-Fi 802.11 ax |
| Bluetooth support | 5.3 |
| Ports & slots | |
| PCIe 5.0 x16 slots | AMD Ryzen 9000 & 7000 Series Desktop Processors* 1 x PCIe 5.0 x16 slot (supports x16 mode) |
| PCIe 4.0 x16 slots | AMD Ryzen 8000 Series Desktop Processors 1 x PCIe 4.0 x16 slot (supports x8/x4 mode)** AMD B650 Chipset 1 x PCIe 4.0 x16 slot (support x4 mode) |
| Onboard USB headers | 1 x USB 5 Gbit/s connector (supports USB Type-C) 1 x USB 5 Gbit/s header supports 2 additional USB 5 Gbit/s ports 3 x USB 2.0 headers support 6 additional USB 2.0 ports |
| Power | |
| Power connectors | 1 × 24-pin Main Power connector 1 × 8-pin +12 V CPU Power connectors 1 × 4-pin +12 V CPU Power connectors |
| Size & build | |
| Form factor | ATX |
| Width and length | 12.0 in × 9.6 in |
| Compatibility | |
| Windows 11 support | Supported |
| More details | |
| BIOS | 256 Mb Flash ROM, UEFI AMI BIOS |
Other versions of this model
The board has four 288-pin DDR5 slots and supports up to 192GB in dual-channel mode.
The 8+2+1 phase design with alloy chokes and a 6-layer PCB is built to deliver stable power to the 170W processor.
The primary M.2_1 slot supports PCIe 5.0 x4 and accepts 2280-length drives.
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