ASUS Amd B840 Socket Am5 Micro Atx
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ASUS Amd B840 Socket Am5 Micro Atx
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Socket
Socket AM5
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Chipset
AMD B840
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M.2 Slot
3
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Memory slots
4 x DIMM, DDR5
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Max RAM frequency
7.6GHz
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Max Memory Supported
256GB
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Form Factor
micro ATX
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Prime
B840M-A WIFI
ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™ 9000 series processors. The PRIME B840M-A WIFI 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.
Specifications:
CPU
- AMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors
Chipset
Memory
- 4 x DIMM slots, max. 256GB, 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)
Graphics
- 2 x DisplayPort
- 1 x HDMI™ port
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 2 x PCIe 3.0 x16 slots (support x1 mode)
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)
- 4 x SATA 6Gb/s ports
- 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
- 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
USB
- Rear USB (Total 7 ports)
- 2 x USB 10Gbps ports (2 x Type-A)
- 1 x USB 5Gbps port (1 x USB Type-C®)
- 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
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
Back Panel I/O Ports
- 2 x USB 10Gbps ports (2 x Type-A)
- 1 x USB 5Gbps port (1 x USB Type-C®)
- 4 x USB 2.0 ports (4 x Type-A)
- 2 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
- 3 x 4-pin Chassis Fan headers
- Power Related
- 1 x 24-pin Main Power connector
- 1 x 8-pin +12V CPU Power connector
- 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 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 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
- TurboV Core
- ASUS CPU-Z
- 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
Accessories
- Cables 2 x SATA 6Gb/s cables
- Miscellaneous
- 1 x ASUS WiFi Q-Antenna
- 1 x M.2 rubber package
- 2 x Screw packages for M.2 SSD
- Documentation 1 x Quick start guide
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)
Please note that although care has been taken in the degree of relevancy, pictures are for
display purposes only, and product appearance may differ from what you see. If there are any
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will be in the product headline (i.e. computer systems may not come with monitors even if
pictured that way). If anything is unclear, please email support before placing your order.