Asus Prime B550M-K
- Model: PRIME B550M-K
- News & Updates: Please visit our GLOBAL website to check and download the latest updates.
- CPU: AMD Socket AM4 for AMD Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors*
* Refer to www.asus.com for CPU support list.
- Chipset: AMD B550 Chipset
- Memory:
- 4 x DIMM, Max. 128GB, DDR4 4866(OC)/4800(OC)/4600(OC)/4466(OC)/4400(OC)/4333(OC)/4266(OC)/4200(OC)/4133(OC)/4000(OC)/3866(OC)/3733(OC)/3600(OC)/3466(OC)/3400(OC)/3333(OC)/3200/3000/2933/2800/2666/2400/2133,
- Un-buffered Memory*
- Dual Channel Memory Architecture
- ECC memory (ECC mode) support varies by CPU.
- * Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists), and memory frequency support depends on the CPU types.
- Graphics:
- 1 x D-Sub port
- 1 x DVI-D port
- 1 x HDMI™ port**
- * Graphics specifications may vary betweenCPU types.
- ** Supports 4K@60Hz as specified in HDMI 2.1.
- Expansion Slots:
- 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: 2 x PCIe 3.0 x1 slots
- Storage:
- Supports 2 x M.2 slots and 4 x SATA 6Gb/s ports
- AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors: M.2_1 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 4.0 x4 & SATA modes)
- AMD Ryzen™ 5000 G-Series/ 4000 G-Series Desktop Processors: M.2_1 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 3.0 x4 & SATA modes)
- AMD B550 Chipset: M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 & SATA modes)
- 4 x SATA 6Gb/s ports
- RAID Support: Supports both PCIe RAID 0/1/10 and SATA RAID 0/1/10
- Ethernet: 1 x Realtek 1Gb Ethernet
- USB:
- Rear USB (Total 6 ports):
- 2 x USB 3.2 Gen 2 ports (2 x Type-A)
- 4 x USB 3.2 Gen 1 ports (4 x Type-A)
- Front USB (Total 6 ports):
- 1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports
- 2 x USB 2.0 headers support additional 4 USB 2.0 ports
- Rear USB (Total 6 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
- – LED-illuminated audio trace path design
- – 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.
- Realtek 7.1 Surround Sound High Definition Audio CODEC*
- Back Panel I/O Ports:
- 2 x USB 3.2 Gen 2 ports (2 x Type-A)
- 4 x USB 3.2 Gen 1 ports (4 x Type-A)
- 1 x D-Sub port
- 1 x DVI-D port
- 1 x HDMI™ port
- 1 x Realtek 1Gb Ethernet port
- 3 x Audio jacks
- 1 x PS/2 Keyboard/Mouse combo port
- Internal I/O Connectors
- 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 header supports additional 2 USB 3.2 Gen 1 ports
- 2 x USB 2.0 headers support additional 4 USB 2.0 ports
- Miscellaneous:
- 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 (14-1pin)
- 1 x 10-1 pin System Panel header
- Special Features:
- ASUS 5X PROTECTION III:
- – DIGI+ VRM
- – LANGuard
- – Overvoltage Protection
- – SafeSlot Core
- – Stainless-Steel Back I/O
- ASUS Q-Design:
- – Q-DIMM
- – Q-Slot
- ASUS Thermal Solution: – VRM heatsink design
- ASUS Lighting Control: Software Features
- ASUS Exclusive Software:
- Armoury Crate
- AI Suite 3
- – Performance and Power Saving Utility
- TurboV EVO
- EPU
- DIGI+ VRM
- Fan Xpert 2+
- – EZ update
- ASUS CPU-Z
- AI Charger
- DAEMON Tools
- Norton Anti-virus software (Free Trial version)
- WinRAR
- UEFI BIOS:
- ASUS EZ DIY
- – ASUS CrashFree BIOS 3
- – ASUS EZ Flash 3
- – ASUS UEFI BIOS EZ Mode
- ASUS 5X PROTECTION III:
- BIOS: 256 Mb 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 M.2 SSD screw package
- Installation Media: 1 x Support DVD
- Documentation: 1 x User manual
- Operating System: Windows 11, Windows 10 64-bit
- Form Factor: mATX Form Factor / 9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm )






















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