Quick overview from the supplier:
MB S1700 Gigabyte B660 DS3H DDR4 1.0 ATX
// CPU
LGA1700 socket: Support for 12th Generation Intel® Core™, Pentium® Gold and Celeron® Processors*
L3 cache varies with CPU
Chipset
Intel® B660 Express Chipset
Memory
Support for DDR4 5333(O.C.)/ DDR4 5133(O.C.)/DDR4 5000(O.C.)/4933(O.C.)/4800(O.C.)/ 4700(O.C.)/ 4600(O.C.)/ 4500(O.C.)/ 4400(O.C.)/ 4300(O.C.)/4266(O.C.) / 4133(O.C.) / 4000(O.C.) / 3866(O.C.) / 3800(O.C.) / 3733(O.C.) / 3666(O.C.) / 3600(O.C.) / 3466(O.C.) / 3400(O.C.) / 3333(O.C.) / 3300(O.C.) / 3200/3000/2933/2666/2400/2133 MHz memory modules
4 x DDR DIMM sockets supporting up to 128 GB (32 GB single DIMM capacity) of system memory
Dual channel memory architecture
Onboard Graphics
Integrated Graphics Processor-Intel® HD Graphics support:
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
* Support for HDMI 2.1 version and HDCP 2.3.
** Support native HDMI 2.1 TMDS compatible ports.
1 x DisplayPort, supporting a maximum resolution of 4096x2304@60 Hz
* Support for DisplayPort 1.2 version and HDCP 2.3
1 x DisplayPort, supporting a maximum resolution of 4096x2304@60 Hz
* Support for DisplayPort 1.2 version.
Audio
Realtek® Audio CODEC
LAN
Realtek® 2.5GbE LAN chip (2.5 Gbps/1 Gbps/100 Mbps)
Expansion Slots
1 x PCI Express x16 slot, running at x16
(The PCIEX16 slot conforms to PCI Express 4.0 standard.)
2 x PCI Express x1 slots
(The PCIEX1 slots conform to PCI Express 3.0 standard.)
Storage Interface
1 x M.2 connector (Socket 3, M key, type 2260/2280 PCIe 4.0 x4/x2 SSD support) (M2P_SB)
4 x SATA 6Gb/s connectors
Support for RAID 0, RAID 1, RAID 5, and RAID 10
USB
1 x USB Type-C® port on the back panel, with USB 3.2 Gen 2 support
5 x USB 3.2 Gen 1 ports (3 ports on the back panel, 2 ports available through the internal USB header)
2 x USB 2.0/1.1 ports on the back panel
https://www.gigabyte.com/Motherboard/B660M-DS3H-DDR4-rev-10/sp#sp
