GA-B550M-K - GIGABYTE B550M K/AMD AM4/MATX/4x DDR4 up to 128

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B550M K/AMD AM4/MATX/4x DDR4 up to 128GB/4733MHz/PCIe 4.0 x1 3.0 x1/M.2 x2

B550M K/AMD AM4/MATX/4x DDR4 up to 128GB/4733MHz/PCIe 4.0 x1 3.0 x1/M.2 x2

B550M K/AMD AM4/MATX/4x DDR4 up to 128GB/4733MHz/PCIe 4.0 x1 3.0 x1/M.2 x2

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CPU	AMD Socket AM4, support for: AMD Ryzen™ 5000 Series/ Ryzen™ 5000 G-Series/ Ryzen™ 4000 G-Series and Ryzen™ 3000 Series Processors
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
I/O Controller	iTE® I/O Controller Chip
H/W Monitoring	Voltage detection Temperature detection Fan speed detection Fan fail warning Fan speed control * Whether the fan speed control function is supported will depend on the cooler you install.
BIOS	1 x 128 Mbit flash Use of licensed AMI UEFI BIOS PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0
Unique Features	Support for APP Center * Available applications in APP Center may vary by motherboard model. Supported functions of each application may also vary depending on motherboard specifications. @BIOS EasyTune Smart Backup System Information Viewer Support for Q-Flash Support for Xpress Install
Bundled Software	Norton® Internet Security (OEM version) LAN bandwidth management software
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
Remark	Due to different Linux support condition provided by chipset vendors, please download Linux driver from chipset vendors' website or 3rd party website. Most hardware/software vendors may no longer offer drivers to support Win9X/ME/2000/XP. If drivers are available from the vendors, we will update them on the GIGABYTE website.

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