Specification
| Motherboard | |
|---|---|
| Model | PRIME B840M-K |
| CPU | AMD Socket AM5 for AMD Ryzen 9000 & 8000 & 7000 Series Desktop Processors* Supports up to AMD 170W CPU * Refer to https://www.asus.com/support/download-center/ for CPU support list. |
| Chipset | AMD B840 Chipset |
| Memory | 2 x DIMM slots, max. 128GB, DDR5 Supports up to 8000+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) * Max Manual Overclocking: Achievable with advanced BIOS configuration and potentially specialized hardware. Results may vary according to system components. * XMP/EXPO/AEMP Profiles: Rated memory module speeds require a BIOS performance profile setting. Results may vary according to system components and can be impacted when four DIMM slots are used. * 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. |
| Graphics | 1 x HDMI port** * Available only on processors featuring integrated graphics. Graphics specifications may vary between CPU types. Please refer to AMD CPU specifications. ** 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 (supports x4 mode) * Please check the PCIe bifurcation table on the support site (https://www.asus.com/support/FAQ/1037507/). ** Specifications vary by CPU types. - To ensure compatibility of the device installed, please refer to https://www.asus.com/support/download-center/ for the list of supported peripherals. |
| Storage | Total supports 2 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 4 x SATA 6Gb/s ports * Specifications vary by CPU types. |
| Ethernet | 1 x Realtek 2.5Gb Ethernet ASUS LANGuard |
| Internal I/O Ports | Fan and Cooling Related 1 x 4-pin CPU Fan 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 2 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 RGB 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 |
| USB | Rear USB (Total 6 ports) 4 x USB 5Gbps ports (4 x Type-A) 2 x USB 2.0 ports (2 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 | 4 x USB 5Gbps ports (4 x Type-A) 2 x USB 2.0 ports (2 x Type-A) 1 x HDMI port 1 x Realtek 2.5Gb Ethernet port 3 x Audio jacks |
| Special Features | ASUS 5X PROTECTION III - DIGI+ VRM - LANGuard - Overvoltage protection - SafeSlot Core+ - Stainless-steel back I/O ASUS Q-Design - Q-Dashboard - Q-DIMM - Q-LED (CPU [red], DRAM [yellow], VGA [white], Boot Device [yellow green]) - Q-Slot ASUS Thermal Solution - VRM heatsink design Aura Sync - Addressable RGB Gen 2 headers |
| Software Features | ASUS Exclusive Software Armoury Crate - Aura Creator - Aura Sync - Fan Xpert 2+ ASUS DriverHub - ASUS AI Advisor - ASUS CPU-Z - TurboV Core - Norton 360 Deluxe (60 Days Free Trial) - WinRAR (40 Days Free Trial) Adobe Creative Cloud (Free Trial)** UEFI BIOS AI Cache Boost ASUS EZ DIY - ASUS CrashFree BIOS 3 - ASUS EZ Flash 3 - ASUS UEFI BIOS EZ Mode - ASUS MyHotkey * For more software features, please visit the asus support site or refer to www.asus.com/support for additional information. ** For detailed information on the supported models and restricted regions for this redemption offer, please refer to https://www.asus.com/content/asus-offers-adobe-creative-cloud/. |
| BIOS | 32MB (256Mb) Flash ROM, UEFI AMI BIOS |
| Manageability | WOL by PME, PXE |
| Accessories | Cables 2 x SATA 6Gb/s cables Miscellaneous 1 x I/O shield 1 x Screw package 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 8.7 inch ( 24.4 cm x 22.1 cm ) |
| RAID Support | AMD RAIDXpert2 Technology Ryzen™ 9000 & 8000 & 7000 Series Processors: RAID 0/1/5/10 |
| Warranty | 3-Year Replacement Warranty *(Terms and Conditions Applied) |
