Quick overview from the supplier:
MB AM4 Gigabyte B450M H 1.0 mATX
// CPU
AMD Socket AM4, support for: Supports AMD Ryzen™ 5000 series / Ryzen™ 5000 G-Series/ 3rd Gen Ryzen™/ 2nd Gen Ryzen™/ 1st Gen Ryzen™/ 2nd Gen Ryzen™ with Radeon™ Vega Graphics/ 1st Gen Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors
Chipset
AMD B450
Memory
2 x DDR4 DIMM sockets supporting up to 64 GB (32 GB single DIMM capacity) of system memory
Dual channel memory architecture
Support for DDR4 3600(O.C.)/3466(O.C.)/2933/2667/2400/2133 MHz memory modules
Onboard Graphics
Integrated Graphics Processor:
1 x D-Sub port, supporting a maximum resolution of 1920x1200@60 Hz
1 x HDMI port, supporting a maximum resolution of 4096x2160@60 Hz
Maximum shared memory of 16 GB
Audio
Realtek® ALC887 codec
High Definition Audio
2/4/5.1/7.1-channel
Support for S/PDIF Out
LAN
Realtek® GbE LAN chip (10/100/1000 Mbit)
Expansion Slots
1 x PCI Express x16 slot, running at x16
2 x PCI Express x1 slots
Storage Interface
1 x M.2 connector (Socket 3, M key, type 2242/2260/2280 SATA and PCIe x4/x2* SSD support)
4 x SATA 6Gb/s connectors
Support for RAID 0, RAID 1, and RAID 10
USB
2 x USB 3.1 Gen 1 ports available through the internal USB header
6 x USB 2.0/1.1 ports (2 ports on the back panel, 4 ports available through the internal USB headers)
4 x USB 3.1 Gen 1 ports on the back panel
https://www.gigabyte.com/Motherboard/B450M-H-rev-10#kf
