ASUS TUF GAMING B450-PLUS IIUK manufacturer specification · TUF GAMING B450-PLUS II- Chipset
- AMD B450This one: AMD B550
MOTHERBOARDS
ASUS PRIME B550-PLUS
UK manufacturer specification
- CPU socket
- AM4
- Chipset
- AMD B550
- Form factor and dimensions
- ATX Form Factor 12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )
PRIME B550-PLUS motherboard, identified in the ASUS UK catalogue. Specifications below retain the manufacturer’s configuration and interface conditions.
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THE ACTUAL PRODUCT
Compare with ASUS TUF GAMING B450-PLUS II
Specifications checked 17 Oct 2026Manufacturer specifications, not a hands-on test.
The nearest checked motherboards by key specifications, with what differs from the ASUS PRIME B550-PLUS. The first matches the Compare button above.
ASUS TUF GAMING B450-PLUS IIUK manufacturer specification · TUF GAMING B450-PLUS II
MSI PRO B550M-VC WIFIAM4 · Micro-ATX · DDR4 · board-only configuration · MSI global specification- Form factor and dimensions
- Micro-ATX; 244 × 244 mmThis one: ATX Form Factor 12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )
MSI B550M PRO-VDH WIFIAM4 · Micro-ATX · DDR4 · board-only configuration · MSI global specification- Form factor and dimensions
- Micro-ATX; 244 × 244 mmThis one: ATX Form Factor 12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )
Key strengths
Published motherboard interfaces and configuration are available from the exact-model ASUS specification source.
Before you buy
Compatibility and maximum operating modes depend on the source’s stated hardware, firmware and connection requirements; manufacturer figures are not independent measurements.
Works with
Products in this catalogue that list the same socket or memory type as the ASUS PRIME B550-PLUS. A shared socket or memory type is necessary but not sufficient: check the exact CPU and memory support lists, and the BIOS version, before buying.
- 7 AM4 processorsSocket AM4 on both, from cited specifications
- 8 DDR4 memory kitsMemory type DDR4 on both, from cited specifications
Every specification. With its source.
Full specifications
Exact configuration: UK manufacturer specification · PRIME B550-PLUS
10 specifications in 7 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”.
Platform & board
3 items
Memory
1 item
- Memory type, slots and limit
- AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors 4 x DIMM, Max. 128GB, DDR4 4600(O.C)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz ECC and non-ECC, Un-buffered Memory * AMD RyzenTM 4000 G-Series Processor 4 x DIMM, Max. 128GB, DDR4 4800(O.C.)/4600(O.C)/4466(O.C.)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3600(O.C.)/3466(O.C.)/3200/3000/2800/2666/2400/2133 MHz ECC and non-ECC, Un-buffered Memory Dual Channel Memory Architecture * Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).Source
Expansion slots
1 item
- Expansion slots and restrictions
- AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors 1 x PCIe 4.0 x16 (x16 mode) AMD RyzenTM 4000 G-Series Processor 1 x PCIe 3.0 x16 (x16 mode) AMD B550 Chipset 1 x PCIe 3.0 x16 (x4 mode) 3 x PCIe 3.0 x1 * Support PCIe bifurcation for RAID on CPU function.Source
Storage
1 item
- Storage interfaces and restrictions
- Total supports 2 x M.2 slot(s) and 6 x SATA 6Gb/s ports AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors: 1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support(SATA & PCIe 4.0 x4 mode) AMD RyzenTM 4000 G-Series Processor: 1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode) AMD B550 Chipset: 1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode)*2 6 x SATA 6Gb/s port(s), *2 Support Raid 0, 1, 10Source
Networking
1 item
- Network interfaces and requirements
- Realtek® RTL8111H ASUS LANGuardSource
Audio
1 item
- Audio interfaces
- Realtek ALC887 7.1-Channel High Definition Audio CODEC - Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking, up to 24-Bit/192kHz playback Audio Feature: - Optical S/PDIF out port(s) at back panel - LED-illuminated design - Audio Shielding - Dedicated audio PCB layers - Premium Japanese audio capacitors - Unique de-pop circuitSource
BIOS, software & diagnostics
2 items
- CPU support and BIOS requirements
- AMD AM4 Socket for AMD Ryzen™ 5000 Series/ 4000 G-Series/ 3000 Series Desktop Processors Processors * * Refer to www.asus.com for CPU support list BIOS: 256 Mb Flash ROM, UEFI AMI BIOS
Exact CPU support and BIOS revision depend on the processor and the current ASUS CPU support list; the family statement is not a guarantee for every processor.
Source - Listed operating systems
- Windows® 10 64-bitSource
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