







- Model: PRIME B840-PLUS WIFI-CSM
*T&C Apply
PRIME B840-PLUS WIFI-CSM
ASUS Prime series motherboards are expertly engineered to
unleash the full potential of AMD Ryzen™ 9000 series processors. The PRIME
B840-PLUS WIFI-CSM motherboard provides users and PC DIY builders with a range
of performance optimizations via intuitive software and firmware features. It’s
designed to be Advanced AI PC-ready, offering the power and connectivity needed
for demanding AI applications.
Specification |
|
CPU |
AMD
Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop
Processors* * Refer
to https://www.asus.com/support/download-center/ for CPU support list. |
Chipset |
AMD
B840 Chipset |
Memory |
4 x
DIMM slots, max. 192GB, DDR5 Supports up to 7600+MT/s (OC) with Ryzen™ 9000
& 8000 & 7000 Series Processors, ECC and Non-ECC Un-buffered DIMM* Dual
channel memory architecture Supports
AMD Extended Profiles for Overclocking (EXPO™) ASUS
Enhanced Memory Profile (AEMP) *
Supported memory types, data rate (speed), and number of DRAM modules vary
depending on the CPU and memory configuration, for more information please
refer to CPU/Memory Support list under the Support tab of product information
site or visit https://www.asus.com/support/download-center/. Adjustments will
be made based on the specifications of mass-produced memory products
available on the market. *
Non-ECC, un-buffered DDR5 memory supports On-Die ECC function. |
Graphic |
1 x
DisplayPort** 1 x
HDMI™ port*** *
Graphics specifications may vary between CPU types. Please refer to AMD CPU specifications. **
Supports max. 8K@30Hz as specified in DisplayPort 1.4. ***
Supports 4K@60Hz as specified in HDMI 2.1. |
Expansion
Slots |
AMD
Ryzen™ 9000 & 7000 Series Desktop Processors* 1 x
PCIe 4.0 x16 slot (supports x16 mode) AMD
Ryzen™ 8000 Series Desktop Processors 1 x
PCIe 4.0 x16 slot (supports x8/x4 mode)** AMD
B840 Chipset 1 x
PCIe 3.0 x16 slot (support x4 mode)*** 2 x
PCIe 3.0 x16 slots (support x1 mode)*** 1 x
PCIe 3.0 x1 slot*** *
Please check the PCIe bifurcation table on the support site
(https://www.asus.com/support/FAQ/1037507/). **
Specifications vary by CPU types. *** The
PCIEX16(G3)_1/3 and PCIEX1(G3) share bandwidth with PCIEX16(G3)_2. The
PCIEX16(G3)_2 will run x1 mode when any of the PCIEX16(G3)_1/3 and PCIEX1(G3)
slots is occupied. - To
ensure compatibility of the device installed, please refer to
https://www.asus.com/support/download-center/ for the list of supported
peripherals. |
Storage |
Supports
3 x M.2 slots and 4 x SATA 6Gb/s ports AMD
Ryzen™ 9000 & 7000 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 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
B840 Chipset M.2_3
slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 mode 4 x
SATA 6Gb/s ports *
Specifications vary by CPU types. AMD
RAIDXpert2 Technology Ryzen™
9000 Series Processors: RAID 0/1/5/10 Ryzen™
8000 Series Processors: RAID 0/1 Ryzen™
7000 Series Processors: RAID 0/1/10 |
LAN |
1 x
Realtek 2.5Gb Ethernet ASUS
LANGuard |
Wireless
& Bluetooth |
"Wi-Fi
6E 2x2
Wi-Fi 6E (802.11ax) Supports
2.4/5/6GHz frequency band* Bluetooth®
v5.3** * WiFi
6E 6GHz regulatory may vary between countries, supported only in Windows 11
or later. ** The
Bluetooth® version may vary, please refer to the Wi-Fi module manufacturer's
website for the latest specifications." |
USB |
Rear
USB (Total 8 ports) 2 x USB
10Gbps port(s) (1 x Type-A + 1 x USB Type-C®) 2 x USB
5Gbps ports (2 x Type-A) 4 x USB
2.0 ports (4 x Type-A) Front
USB (Total 7 ports) 1 x USB
5Gbps connector (supports USB Type-C®) 1 x USB
5Gbps header supports 2 additional USB 5Gbps ports 2 x USB
2.0 headers support 4 additional USB 2.0 ports * USB
Type-C® power delivery output: max. 5V/3A |
Audio |
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. |
Back
Panel I/O Ports |
1 x USB
10Gbps port (1 x USB Type-C®) 1 x USB
10Gbps port (1 x Type-A) 2 x USB
5Gbps ports (2 x Type-A) 4 x USB
2.0 ports (4 x Type-A) 1 x
DisplayPort 1 x
HDMI™ port 1 x
Wi-Fi module 1 x
Realtek 2.5Gb Ethernet port 3 x
Audio jacks 1 x
BIOS FlashBack™ button |
Internal
I/O Connectors |
Fan 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 4 x
4-pin Chassis Fan header Power
Related 1 x
24-pin Main Power connector 1 x
8-pin +12V CPU Power connectors 1 x
4-pin +12V CPU Power connectors Storage
Related 3 x M.2
slots (Key M) 4 x
SATA 6Gb/s ports USB 1 x USB
5Gbps connector (supports USB Type-C® ) 1 x USB
5Gbps header supports 2 additional USB 5Gbps ports 2 x USB
2.0 headers support 4 additional USB 2.0 ports Miscellaneous 3 x
Addressable Gen 2 headers 1 x
Clear CMOS header 1 x
Chassis Intrusion header 1 x COM
Port header 1 x
Front Panel Audio header (F_AUDIO) 1 x
S/PDIF Out header 1 x SPI
TPM header (14-1 pin) 1 x
10-1 pin System Panel header 1 x
Thunderbolt™ (USB4®) header |
Special
Features |
ASUS 5X
PROTECTION III - DIGI+
VRM -
LANGuard -
Overvoltage protection -
SafeSlot core+ -
Stainless-steel back I/O ASUS
Q-Design -
Q-Antenna -
Q-Dashboard -
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 -
Pre-mounted I/O shield -
SafeSlot core+ Aura
Sync -
Addressable Gen 2 headers |
Software
Features |
ASUS
Exclusive Software Armoury
Crate - Aura
Creator - Aura
Sync - Fan
Xpert 2+ - Power
Saving ASUS
Driver Hub ASUS
GlideX TurboV
Core ASUS
CPU-Z Adobe
Creative Cloud (Free Trial) Norton
360 Deluxe (60 Days Free Trial) WinRAR
(40 Days Free Trial) UEFI
BIOS ASUS EZ
DIY - ASUS
CrashFree BIOS 3 - ASUS
EZ Flash 3 - ASUS
UEFI BIOS EZ Mode - ASUS
MyHotkey |
BIOS |
256 Mb
Flash ROM, UEFI AMI BIOS |
Manageability |
WOL by
PME, PXE |
Accessories |
Cables 2 x
SATA 6Gb/s cables Miscellaneous 1 x
ASUS WiFi Q-Antenna 1 x M.2
rubber packages 3 x
Screw packages for M.2 SSD Documentation 1 x ACC
Express Activation Key Card 1 x
Quick start guide |
OS |
Windows®
11, Windows® 10 64-bit |
Form
Factor |
ATX
Form Factor 12 inch
x 9.6 inch ( 30.5 cm x 24.4 cm ) |
Warranty |
3 Years |
Note* |
Price, feature and specifications
are subject to change without notice. |