Gigabyte B550M K , AMD B550, AM4, 4xDDR4, mATX

   AMD Socket AM4, support for: AMD Ryzen™ 5000 Series/ Ryzen™ 5000 G-Series/ Ryzen™ 4000 G-Series and Ryzen™ 3000 Series Processors
(Please refer "CPU Support List" for more information.)
Chipset
   AMD B550
Memory
   4 x DDR4 DIMM sockets supporting up to 128 GB (32 GB single DIMM capacity) of system memory
   Support for DDR4 4733(O.C.) / 4600(O.C.) / 4400(O.C.) / 4266(O.C.) / 4133(O.C.) / 4000(O.C.) / 3866(O.C.) / 3733(O.C.) / 3600(O.C.) / 3466(O.C) / 3400(O.C.) / 3200 / 2933 / 2667 / 2400 / 2133 MHz memory modules
   Dual channel memory architecture
   Support for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules*
   * ECC memory (ECC mode) support varies by CPU
   Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modules
   Support for Extreme Memory Profile (XMP) memory modules
(Please refer "Memory Support List" for more information.)
Onboard Graphics
Integrated Graphics Processor:
   1 x DisplayPort, supporting a maximum resolution of 5120x2880@60 Hz
   * Support for DisplayPort 1.4 version, HDCP 2.3, and HDR.
   1 x HDMI port, supporting a maximum resolution of 4096x2160@60 Hz
   * Support for HDMI 2.1 version, HDCP 2.3, and HDR.
Maximum shared memory of 16 GB
Audio
   Realtek® Audio CODEC
   High Definition Audio
   2/4/5.1/7.1-channel
   * You can change the functionality of an audio jack using the audio software. To configure 7.1-channel audio, access the audio software for audio settings.
LAN
   Realtek® GbE LAN chip (1 Gbps/100 Mbps)
Expansion Slots
1 x PCI Express x16 slot, integrated in the CPU:
   AMD Ryzen™ 5000 Series/3000 Series Processors support PCIe 4.0 x16 mode
   AMD Ryzen™ 5000 G-Series/4000 G-Series Processors support PCIe 3.0 x16 mode
1 x PCI Express x1 slot, integrated in the Chipset:
   Supporting PCIe 3.0 x1 mode
Storage Interface
1 x M.2 connector (M2A_CPU), integrated in the CPU, supporting Socket 3, M key, type 2280 SSDs:
   AMD Ryzen™ 5000 Series/3000 Series Processors support SATA and PCIe 4.0 x4/x2 SSDs
   AMD Ryzen™ 5000 G-Series/4000 G-Series Processors support SATA and PCIe 3.0 x4/x2 SSDs
1 x M.2 connector (M2B_SB), integrated in the Chipset, supporting Socket 3, M key, type 2280 SSDs:
   Supporting PCIe 3.0 x2 SSDs
4 x SATA 6Gb/s connectors, integrated in the Chipset:
   Support for RAID 0, RAID 1, and RAID 10
USB
CPU:
   4 x USB 3.2 Gen 1 ports on the back panel
Chipset:
   2 x USB 3.2 Gen 1 ports available through the internal USB header
   6 x USB 2.0/1.1 ports (4 ports on the back panel, 2 ports available through the internal USB header)
Internal I/O Connectors
   1 x 24-pin ATX main power connector
   1 x 8-pin ATX 12V power connector
   1 x CPU fan header
   1 x system fan header
   2 x M.2 Socket 3 connectors
   4 x SATA 6Gb/s connectors
   1 x front panel header
   1 x front panel audio header
   1 x USB 3.2 Gen 1 header
   1 x USB 2.0/1.1 header
   1 x Trusted Platform Module (TPM) header (2x6 pin, for the GC-TPM2.0_S module only)
   1 x Clear CMOS jumper
Back Panel Connectors
   1 x PS/2 keyboard/mouse port
   1 x DisplayPort
   1 x HDMI port
   4 x USB 3.2 Gen 1 ports
   4 x USB 2.0/1.1 ports
   1 x RJ-45 port
   3 x audio jacks
Operating System
   Support for Windows 11 64-bit
   Support for Windows 10 64-bit
Form Factor
   Micro ATX Form Factor; 24.4cm x 24.4cm