Asus Prime B550M-K ARGB AM4 mATX Motherboard (PRIME B550M-K ARGB) - OPENED BOX 83905

SPECIFICATIONS:CPUAMD 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. ChipsetAMD B550 Chipset Memory2 x DIMM slots, Max. 64GB, DDR4 5100(OC)/ 4866(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 MemoryDual Channel Memory Architecture ECC memory (ECC mode) support varies by CPU.* 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/.Graphics1 x DisplayPort1 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 SlotsAMD Ryzen 5000 Series/ 3000 Series Desktop Processors1 x PCIe 4.0 x16 slot (supports x16 mode)AMD Ryzen 5000 G-Series/ 4000 G-Series Desktop Processors1 x PCIe 3.0 x16 slot (supports x16 mode)AMD B550 Chipset1 x PCIe 3.0 x1 slot* Please check the PCIe bifurcation table on the support site (https://www.asus.com/support/FAQ/1037507/).- To ensure compatibility of the device installed, please refer to https://www.asus.com/support/ for the list of supported peripherals. StorageTotal supports 2 x M.2 slots and 4 x SATA 6Gb/s portsAMD Ryzen 5000 Series/ 3000 Series Desktop ProcessorsM.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 & SATA modes)AMD Ryzen 5000 G-Series/ 4000 G-Series Desktop ProcessorsM.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 & SATA modes)AMD B550 ChipsetM.2_2 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 3.0 x4 & SATA modes)4 x SATA 6Gb/s ports AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/10 and SATA RAID 0/1/10. Ethernet1 x Realtek 1Gb Ethernet USBRear 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 ports2 x USB 2.0 headers support 4 additional USB 2.0 ports AudioRealtek 7.1 Surround Sound High Definition Audio CODEC*- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking- Supports up to 24-Bit/192 kHz playbackAudio 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 Ports4 x USB 3.2 Gen 1 (5G) ports (4 x Type-A)2 x USB 2.0 ports (2 x Type-A)1 x DisplayPort1 x HDMI port1 x Realtek 1Gb Ethernet port3 x Audio jacks1 x PS/2 Keyboard/Mouse combo port Internal I/O ConnectorsFan and Cooling related1 x 4-pin CPU Fan header2 x 4-pin Chassis Fan headersPower related1 x 24-pin Main Power connector1 x 8-pin +12V Power connectorStorage related2 x M.2 slots (Key M)4 x SATA 6Gb/s portsUSB1 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 ports2 x USB 2.0 headers support 4 additional USB 2.0 portsMiscellaneous3 x Addressable Gen 2 headers1 x Clear CMOS header1 x COM Port header1 x Front Panel Audio header (AAFP)1 x S/PDIF Out header1 x Speaker header1 x SPI TPM header (14-1 pin)1 x 10-1 pin System Panel header Special FeaturesASUS 5X PROTECTION III- DIGI+ VRM- LANGuard- Overvoltage Protection- SafeSlot Core- Stainless-Steel Back I/OASUS Q-Design- Q-DIMM- Q-LED Core- Q-SlotASUS Thermal Solution- Aluminum heatsink designAura Sync- Addressable Gen 2 headers Software FeaturesASUS Exclusive SoftwareArmoury Crate- Aura Creator- Aura SyncAI Suite 3- Performance And Power Saving Utility TurboV EVO EPU DIGI+ VRM Fan Xpert 2+- EZ updateASUS CPU-ZNorton 360 Deluxe (60 Days Free Trial)WinRARUEFI BIOSASUS EZ DIY- ASUS CrashFree BIOS 3- ASUS EZ Flash 3- ASUS UEFI BIOS EZ Mode BIOS128 Mb Flash ROM, UEFI AMI BIOS ManageabilityWOL by PME, PXE AccessoriesCables2 x SATA 6Gb/s cablesMiscellaneous1 x I/O Shield1 x Screw package for M.2 SSDDocumentation1 x User guide Operating SystemWindows 11, Windows 10 64-bit Form Factormicro-ATX Form Factor9.6 inch x 8.7 inch ( 24.4 cm x 22.1 cm )