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ATX motherboard in black with silver heatsinks, AM5 socket, four DDR5 slots, PCIe x16 and M.2 slots, 2.5Gb LAN, HDMI and DisplayPort

ASUS

ASUS PRIME B650-PLUS + Ryzen 9 9950X AMD motherboard & CPU combo

SKU CH-NN41-V3GZF

An AM5 motherboard and 16-core Ryzen 9 9950X combo with DDR5 support up to 6400 MT/s, PCIe 5.0 M.2, 2.5 Gb LAN and BIOS FlashBack

  • CPU Socket TypeAM5
  • CPU TypeSupports AMD Ryzen 7000 Series Desktop Processors* * Refer t
  • ChipsetAMD B650
  • Number of Memory Slots4x288pin (DDR5)
  • Memory StandardDDR5 6400+(OC) / 6200(OC) / 6000(OC) / 5800(OC) / 5600(OC) /
  • Maximum Memory Supported256GB

model PRIME B650-PLUS

Show 2 more configurations

+CPU +Ryzen 9 9950X

  • 16 cores and 32 threads deliver high multi-thread performance
  • 7 GHz max boost clock enables fast single-thread speeds
  • DDR5 memory support up to 6400 MT/s provides high bandwidth
  • PCIe 5.0 M.2 slot allows ultrafast storage throughput
  • 5 Gb Ethernet and USB4 support give fast wired connectivity

Ready for Ryzen 9000 series builds

This combo pairs an ASUS PRIME B650-PLUS motherboard with a Ryzen 9 9950X processor. The board uses the AMD B650 chipset on an ATX form factor with an AM5 socket. It supports DDR5 memory up to 256GB across four slots and includes a PCIe 5.0 M.2 slot for high-speed storage. 2.5Gb LAN and USB4 support handle connectivity.

Suits multithreaded workloads

The 16-core 32-thread CPU reaches 5.7 GHz max boost and offers 64MB L3 cache. Builders who need strong single-thread speed and heavy parallel throughput will benefit. Users planning lighter tasks or tighter budgets should consider 8-core alternatives. A BIOS update may be required for 9000 series operation.

16-core 32-thread Zen 5 CPU included

The processor delivers 16 cores and 32 processing threads based on the Zen 5 architecture. This core count is the deciding factor for rendering, compilation and scientific workloads that scale across many threads. If your software does not use high thread counts, a lower-core model may be more cost-effective.

Highlights

  • 16 cores and 32 threads deliver high multi-thread performance
  • 7 GHz max boost clock enables fast single-thread speeds
  • DDR5 memory support up to 6400 MT/s provides high bandwidth
  • PCIe 5.0 M.2 slot allows ultrafast storage throughput
  • 5 Gb Ethernet and USB4 support give fast wired connectivity

Specifications

BrandASUS
SeriesPrime
ModelPRIME B650-PLUS+R9 9950X
CPU Socket TypeAM5
CPU TypeSupports AMD Ryzen 7000 Series Desktop Processors*
* Refer to www.asus.com for CPU support list.
ChipsetAMD B650
Number of Memory Slots4x288pin (DDR5)
Memory StandardDDR5 6400+(OC) / 6200(OC) / 6000(OC) / 5800(OC) / 5600(OC) / 5400(OC) / 5200 / 5000 / 4800*
* Supported memory types, data rate(Speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information refer to www.asus.com for memory support list.
* Non-ECC, Un-buffered DDR5 Memory supports On-Die ECC function.
Maximum Memory Supported256GB
Channel SupportedDual Channel
ECC SupportedYes
Buffer SupportedUn-buffered
Memory FeatureSupports AMD EXTended Profiles for Overclocking (EXPO)
OptiMem II
PCI Express 4.0 x16AMD Ryzen 7000 Series Desktop Processors
1 x PCIe 4.0 x16 slot (supports x16 mode)
AMD B650 Chipset
1 x PCIe 4.0 x16 slot (supports x4 mode)
* Please check the PCIe bifurcation table on the ASUS support site
PCI Express x12 x PCIe 4.0 x1 slots
Serial ATA (SATA)4 x SATA 6Gb/s
M.2AMD 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 RAIDAMD RAIDXpert2 Technology supports both PCIe RAID 0/1/10 and SATA RAID 0/1/10
Audio 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
Max LAN Speed2.5Gbps
Wireless LANVertical M.2 slot only (Key E, PCIe)*
* Wi-Fi module is sold separately.
Back I/O Ports4 x USB 3.2 Gen 2 ports (3 x Type-A + 1 x USB Type-C)
2 x USB 3.2 Gen 1 ports (2 x Type-A)
2 x USB 2.0 ports (2 x Type-A)
1 x DisplayPort
1 x HDMI port
1 x Vertical M.2 slot (Key E)
1 x Realtek 2.5Gb Ethernet port
5 x Audio jacks
1 x Optical S/PDIF out port
1 x BIOS FlashBack button
Onboard USB1 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
Other ConnectorsFan and Cooling related
1 x 4-pin CPU Fan header
1 x 4-pin CPU OPT Fan header
1 x 4-pin AIO Pump header
3 x 4-pin Chassis Fan headers
Storage related
2 x M.2 slots (Key M)
4 x SATA 6Gb/s ports
Miscellaneous
3 x Addressable Gen 2 headers
1 x Aura RGB header
1 x Clear CMOS header
1 x COM Port header
1 x Front Panel Audio header (AAFP)
1 x SPI TPM header (14-1pin)
1 x 20-3 pin System Panel header with Chassis intrude function
1 x Thunderbolt (USB4) header
Form FactorATX
Dimensions (W x L)12.0" x 9.6"
Power Pin1 x 24-pin Main Power connector
1 x 8-pin +12V Power connector
Windows 11Supported
FeaturesASUS 5X PROTECTION III
- DIGI+ VRM
- LANGuard
- Overvoltage Protection
- Safeslot Core+
- Stainless-Steel Back I/O
ASUS Q-Design
- Q-DIMM
- Q-LED Core
- Q-Slot
ASUS Thermal Solution
- Flexible M.2 heatsink
- VRM heatsink design
ASUS EZ DIY
- BIOS FlashBack button
- BIOS FlashBack LED
- ProCool
Aura Sync
- Aura RGB header
- Addressable Gen 2 headers
Package Contents1 x AMD Ryzen 9 9950X CPU
1 x Shin-Etsu X-23-7868-2D (1.8g)
Cables
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

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Will the board run the included 9950X out of the box?

The CPU is a 16 core 32 thread part based on Zen 5 with a 5.7 GHz max boost. A BIOS update may be required for 9000 series processors, but the board includes USB BIOS FlashBack so you can update without a memory or CPU installed.

What DDR5 speeds can I actually use with this CPU?

The 9950X supports DDR5 5600 natively. The motherboard lists OC profiles up to 6400, but supported data rates depend on the specific memory kit and CPU configuration.

How many M.2 drives can I fit and at what speeds?

Two M.2 slots accept 2242, 2260, 2280 and 22110 form factors. The first runs at PCIe 5.0 x4 from the CPU, the second at PCIe 4.0 x4 from the chipset.

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