The ASUS PRIME B840-PLUS WIFI is an ATX motherboard designed for AMD processors, fitting the Socket AM5 platform and supporting AMD Ryzen 7000, 8000, and 9000 Series CPUs. Built around the AMD B840 chipset, this board comes in a sleek silver and black finish and measures 305 x 244 mm. It supports up to 192 GB of DDR5 memory across four DIMM slots in dual-channel configuration, with overclocked speeds reaching 7600+ MHz and ECC compatibility for added flexibility.
Storage and Expansion Capabilities
The ASUS PRIME B840-PLUS WIFI offers a well-rounded set of storage and expansion options. Three M.2 slots are available, with the first two supporting PCIe 4.0 and the third running on PCIe 3.0, all accommodating up to 2280 form factor drives. Four SATA III connectors provide additional storage connectivity. For expansion, the board includes one PCIe x16 Gen 4 slot alongside three PCIe 3.0 x16 slots and one PCIe 3.0 x1 slot, offering plenty of room for graphics cards and other peripherals.
Connectivity and Networking
On the connectivity front, this motherboard is equipped with Wi-Fi 6E (802.11ax) and Bluetooth 5.3 for fast wireless communication. Wired networking is handled by a Realtek 2.5GbE LAN chip. The board also features a comprehensive USB layout including USB 3.2 Gen 2 Type-A and Type-C ports, as well as a Thunderbolt header. Display output is covered by one HDMI and one DisplayPort, while the Realtek HD Audio CODEC delivers 7.1 surround sound audio.
Product number manufacturer:
90MB1IZ0-M0EAY0
Audio
Realtek 7.1 Surround Sound HD Audio CODEC
BIOS
Connectivity
USB 3.2 (Gen 1) type A ports:
3
USB 3.2 (Gen 1) type C ports:
1
USB 3.2 (Gen 2) type A ports:
1
USB 3.2 (Gen 2) type C ports:
1
Expansion slots
PCI Express 3.0 x1 slots:
1
PCI Express 3.0 x16 slots:
3
Internal I/O
1st M.2 maximum slot size:
2280
1st M.2 slot PCI Express generation:
4.0
2nd M.2 maximum slot size:
2280
2nd M.2 slot PCI Express generation:
4.0
3rd M.2 maximum slot size:
2280
3rd M.2 slot PCI Express generation:
3.0
ATX Power connector (24-pin):
Chassis fan connector(s):
4
Chassis intrusion connector:
Front panel audio connector:
Thunderbolt header (5-pin):
1
USB 3.1 (3.1 Gen 2) connectors:
0
USB 3.1 (Gen 1) header(s):
2
Memory
Supported memory clock speeds (OC):
7600+ (OC) MHz
Networking
Network technology (wired):
Packaging content
Physical characteristics
Processor
Compatible processor series:
AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Sockets
Technical details
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