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| Basic Information | ||
| Supported CPU | Ryzen 5000/4000/3000 Series Processors for Socket AM4 | |
| Chipset | AMD B550 Chipset | |
| Form Factor | micro-ATX Form Factor 9.6 inch x 8.7 inch ( 24.4 cm x 22.1 cm ) | |
| Memory | ||
| Number of Memory Slots | 2 x DIMM | |
| Maximum Memory | 64GB | |
| Graphics | ||
| Graphics | 1 x DisplayPort 1 x HDMI™ port Graphics specifications may vary between CPU types. Please refer to AMD CPU specifications. Supports max. 4K@60Hz as specified in DisplayPort 1.4. Supports 4K@60Hz as specified in HDMI 2.1. | |
| Expansion Slots | ||
| Expansion Slots | PCI AMD Ryzen 5000 Series/ 3000 Series Desktop Processors 1 x PCIe 4.0 x16 slot (supports x16 mode) AMD Ryzen 5000 G-Series/ 4000 G-Series Desktop Processors 1 x PCIe 3.0 x16 slot (supports x16 mode) AMD B550 Chipset 1 x PCIe 3.0 x1 slot M.2 Socket 2 x M.2 slots | |
| Network | ||
| LAN | 1 x Realtek 1Gb Ethernet | |
| Audio | ||
| 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. | |
| BIOS | ||
| BIOS | 128 Mb Flash ROM, UEFI AMI BIOS | |
| Ports & Connectors | ||
| HDMI | 1 x HDMI port | |
| USB Ports | Rear USB (Total 6 ports) 4 x USB 3.2 Gen 1 (5G) ports (4 x Type-A) 2 x USB 2.0 ports (2 x Type-A) Front USB (Total 7 ports) 1 x USB 3.2 Gen 1 (5G) connector (supports USB Type-C) 1 x USB 3.2 Gen 1 (5G) header supports 2 additional USB 3.2 Gen 1 ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports | |
| Display Port | 1 x DisplayPort | |
| RAID | AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/10 and SATA RAID 0/1/10. | |
| TPM (Trusted Platform Module ) | 1 x SPI TPM header (14-1 pin) | |
| Internal I/O Ports | Fan and Cooling related 1 x 4-pin CPU Fan header 2 x 4-pin Chassis Fan headers Power related 1 x 24-pin Main Power connector 1 x 8-pin +12V Power connector Storage related 2 x M.2 slots (Key M) 4 x SATA 6Gb/s ports USB 1 x USB 3.2 Gen 1 (5G) connector (supports USB Type-C) 1 x USB 3.2 Gen 1 (5G) header supports 2 additional USB 3.2 Gen 1 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 (AAFP) 1 x S/PDIF Out header 1 x Speaker header 1 x SPI TPM header (14-1 pin) 1 x 10-1 pin System Panel header | |
| Others | ||
| Bundled Software | ASUS Exclusive Software Armoury Crate - Aura Creator - Aura Sync AI Suite 3 - Performance And Power Saving Utility TurboV EVO EPU DIGI+ VRM Fan Xpert 2+ - EZ update ASUS CPU-Z Norton 360 Deluxe (60 Days Free Trial) WinRAR UEFI BIOS ASUS EZ DIY - ASUS CrashFree BIOS 3 - ASUS EZ Flash 3 - ASUS UEFI BIOS EZ Mode | |
| Warranty | ||
| Warranty | 3 Years | |
The Asus PRIME B550M-K ARGB AMD DDR4 AM4 micro-ATX Motherboard engineered on the AMD B550 chipset delivers solid performance for budget-conscious gamers and PC builders. Designed around the AM4 socket, it provides full compatibility for AMD Ryzen 5000, 4000 G-Series, and 3000 Series desktop processors. The micro-ATX motherboard architecture features dual DDR4 DIMM slots supporting up to 64GB of dual-channel RAM overclocked up to 5100 MHz (OC). Storage solutions feature dual M.2 slots with high-speed PCIe 4.0 x4 NVMe SSD support alongside four SATA 6Gb/s ports for extensive data drives. High-speed connectivity includes a primary PCIe 4.0 x16 expansion slot, Realtek 1Gb Ethernet, USB 3.2 Gen 1 Type-C front header support, and HDMI with DisplayPort dual display outputs. Thermal efficiency is managed via PCH heatsinks and Fan Xpert 2+ software, while hardware longevity is backed by 5X Protection III safeguards. Onboard Addressable Gen 2 headers enable full lighting customization via Aura Sync ARGB software, and Realtek 7.1 Surround Sound audio delivers immersive clarity. This micro-ATX motherboard comes backed by a 3-year manufacturer warranty.
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