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ATX motherboard with silver heatsinks and black PCB

ASUS

ASUS PRIME B650-PLUS AMD motherboard

SKU CH-5S85-C97EY

ATX board for AMD Ryzen 7000, 8000 and 9000 CPUs with DDR5 up to 6400, PCIe 5.0 M.2, 2.5Gb LAN and BIOS FlashBack

  • ProcessorSupports AMD Ryzen 7000 Series Desktop Processors* * Refer t
  • ChipsetAMD B650
  • Form factorATX
  • CPU socketAM5
  • Memory slot count4 × 288pin (DDR5)
  • Supported memoryDDR5 6400+(OC) / 6200(OC) / 6000(OC) / 5800(OC) / 5600(OC) /
  • Ready for AMD Ryzen 9000, 8000 and 7000 series CPUs via AM5 socket
  • M.2 slot supports PCIe 5.0 x4 for the fastest storage speeds
  • 5 Gbps LAN and USB 3.2 Gen 2 Type-C deliver quick wired connectivity
  • OptiMem II trace routing preserves signal integrity for higher DDR5 overclocks
  • BIOS FlashBack updates firmware safely without a CPU or memory installed

AM5 Platform for Ryzen 7000, 8000, 9000

The ASUS Prime B650-PLUS is an ATX motherboard built on the AMD B650 chipset for socket AM5 processors. It supports Ryzen 7000, 8000 and 9000 series CPUs, with a BIOS update potentially required for the newest chips. Four DDR5 slots accept up to 256 GB of unbuffered memory with ECC and EXPO profiles. The board targets builders who want a mainstream platform with PCIe 5.0 M.2 and 2.5 Gb Ethernet.

Suits mainstream builds, not compact cases

This board fits standard ATX chassis and serves gaming rigs, workstations and general-purpose desktops that need four memory slots and multiple M.2 drives. Builders using smaller ITX cases or requiring onboard Wi-Fi should look at alternative form factors. The VRM heatsink, M.2 heatsink and PCH heatsink handle sustained loads, while Fan Xpert 2+ manages hybrid fan headers for balanced airflow.

PCIe 5.0 M.2 slot for fastest storage

The primary M.2_1 slot connects directly to the CPU and runs at PCIe 5.0 x4, supporting 2242, 2260, 2280 and 22110 modules. A second M.2_2 slot operates at PCIe 4.0 x4 from the chipset. This direct Gen 5 link is the specification that determines whether the board matches a workload demanding maximum sequential throughput from a single drive.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $172.99
Cheaper than about 58% of the 1,906 comparable items (median $224.49).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameASUS
Product linePrime
Model nameB650-PLUS
Processor
ProcessorSupports AMD Ryzen 7000 Series Desktop Processors*
* Refer to www.asus.com for CPU support list.
CPU socketAM5
ChipsetAMD B650
Memory
Memory slot count4 × 288pin (DDR5)
Max supported RAM256 GB
Memory channelsDual Channel
ECC supportYes
BufferingUn-buffered
Storage
SATA ports4 x SATA 6Gb/s
M.2 slotsAMD Ryzen 7000 Series Desktop Processors
M.2_1 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 5.0 x4 mode)
M.2_2 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 4.0 x4 mode)
SATA and RAID supportAMD RAIDXpert2 Technology supports both PCIe RAID 0/1/10 and SATA RAID 0/1/10
Audio & video
Sound channelsRealtek 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
Connectivity
Maximum network speed2.5 Gbit/s
Wi-Fi standardVertical M.2 slot only (Key E, PCIe)*
* Wi-Fi module is sold separately.
Ports & slots
PCIe x1 slots2 x PCIe 4.0 x1 slots
Onboard USB headers1 x USB 3.2 Gen 1 connector (supports USB Type-C )
1 x USB 3.2 Gen 1 header supports 2 additional USB 3.2 Gen 1 ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports
Power
Power connectors1 × 24-pin Main Power connector
1 × 8-pin +12 V Power connector
Size & build
Form factorATX
Width and length12.0 in × 9.6 in
Compatibility
Windows 11 supportSupported
In the box
In the boxCables
2 x SATA 6Gb/s cables
Miscellaneous
1 x I/O Shield
1 x M.2 Rubber Package
1 x Screw package for M.2 SSD
Documentation
1 x User guide

Questions about this item

How much DDR5 memory can the four slots on this board hold in total?

The four 288-pin slots support up to 256GB of DDR5 running in dual-channel mode.

What cooling hardware is already on the board for all-day operation?

It includes a VRM heatsink, an M.2 heatsink, a PCH heatsink, hybrid fan headers and Fan Xpert 2+ software control.

Which CPU and memory must I already have to use the AM5 socket and DDR5 slots?

You need an AMD Ryzen 7000, 8000 or 9000 series processor and DDR5 modules; a BIOS update may be required for 8000 and 9000 series CPUs.

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