Дънна платка Asus PRIME B840M-A WIFI, B840, AM5, DDR5, PCI-E 4.0 (DP&HDMI), 4x SATA 6Gb/s, 3x M.2 slots, 2x USB 3.2 Gen 2 Type-A, 1x USB 3.2 Gen 1 Type-C, 2.5GbE LAN, Wi-Fi 6E, Bluetooth 5.3, microATX

PRIME B840M-A WIFI
90MB1J20-M0EAY0

CPU
AMD Socket AM5 for AMD Ryzen 9000 & 8000 & 7000 Series Desktop Processors*

Chipset
AMD B840 Chipset

Memory
4x 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.
* Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.

Graphics
2x DisplayPort**
1x 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
1x PCIe 4.0 x16 slot (supports x16 mode)
AMD Ryzen 8000 Series Desktop Processors
1x PCIe 4.0 x16 slot (supports x8/x4 mode)**
AMD B840 Chipset
2x PCIe 3.0 x16 slots (support x1 mode)
** Specifications vary by CPU types.

Storage
Total 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 2242/2260/2280 (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 2242/2260/2280 (supports PCIe 4.0 x4/x2 mode)*
AMD B840 Chipset
M.2_3 slot (Key M), type 2280 (supports PCIe 3.0 x4 mode)
4x 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

Ethernet
1x 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 7 ports)
2x USB 10Gbps ports (2x Type-A)
1x USB 5Gbps port (1x USB Type-C)
4x USB 2.0 ports (4x Type-A)

Front USB (Total 7 ports)
1x USB 5Gbps connector (supports USB Type-C)
1x USB 5Gbps header supports 2 additional USB 5Gbps ports
2x 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
2x USB 10Gbps ports (2x Type-A)
1x USB 5Gbps port (1x USB Type-C)
4x USB 2.0 ports (4x Type-A)
2x DisplayPort
1x HDMI port
1x Wi-Fi module
1x Realtek 2.5Gb Ethernet port
3x Audio jacks
1x BIOS FlashBack button

Internal I/O Connectors
Fan and Cooling Related
1x 4-pin CPU Fan header
1x 4-pin CPU OPT Fan header
1x 4-pin AIO Pump header
3x 4-pin Chassis Fan headers

Power Related
1x 24-pin Main Power connector
1x 8-pin +12V CPU Power connector

Storage Related
3x M.2 slots (Key M)
4x 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
3x Addressable Gen 2 headers
1x Clear CMOS header
1x COM Port header
1x Front Panel Audio header (F_AUDIO)
1x S/PDIF Out header
1x SPI TPM header (14-1 pin)
1x 10-1 pin Front Panel System 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
- M.2 heatsink
- VRM heatsink design

ASUS EZ DIY
- BIOS FlashBack button
- BIOS FlashBack LED
- Pre-mounted I/O shield

Aura Sync
- Addressable Gen 2 headers

Software Features
ASUS Exclusive Software
Armoury Crate
- Aura Creator
- Aura Sync
- Fan Xpert 2+
- Power Saving
ASUS DriverHub
ASUS GlideX
TurboV Core
ASUS CPU-Z

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

Operating System
Windows 11, Windows 10 64-bit

Form Factor
micro-ATX Form Factor
9.6 inch x 9.6 inch (24.4 cm x 24.4 cm)

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