Quick overview from the supplier:
MB S1700 ASRock Z690 STEEL LEGEND ATX
// CPU
Supports 12th Gen Intel® Core™ Processors (LGA1700)
Chipset
- Intel® Z690
Memory
- Dual Channel DDR4 Memory Technology
- 4 x DDR4 DIMM Slots
- Supports DDR4 non-ECC, un-buffered memory up to 5000+(OC)*
- Max. capacity of system memory: 128GB
Graphics
- Intel® Xe Graphics Architecture (Gen 12)
- Dual graphics output: support HDMI and DisplayPort 1.4 ports by independent display controllers
- Supports HDMI 2.1 TMDS Compatible with max. resolution up to 4K x 2K (4096x2160) @ 60Hz
- Supports DisplayPort 1.4 with DSC (compressed) max. resolution up to 8K (7680x4320) @ 60Hz
Audio
- 7.1 CH HD Audio (Realtek ALC897 Audio Codec)
LAN
- 2.5 Gigabit LAN 10/100/1000/2500 Mb/s
- Dragon RTL8125BG
Slots
- 3 x PCIe x16 Slots (PCIE2/PCIE3/PCIE5: single at Gen5x16 (PCIE2); dual at Gen5x16 (PCIE2) / Gen4x4 (PCIE3); triple at Gen5x16 (PCIE2) / Gen4x4 (PCIE3) / Gen3x4 (PCIE5))*
- 2 x PCIe Gen3x1 Slots
- 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module and Intel® CNVi (Integrated WiFi/BT)
Storage
- 8 x SATA3 6.0 Gb/s Connectors*
- 1 x Hyper M.2 Socket (M2_1, Key M), supports type 2260/2280 PCIe Gen4x4 (64 Gb/s) mode**
- 1 x Ultra M.2 Socket (M2_2, Key M), supports type 2230/2242/2260/2280 SATA3 6.0 Gb/s & PCIe Gen3x4 (32 Gb/s) modes**
- 1 x Hyper M.2 Socket (M2_3, Key M), supports type 2242/2260/2280/22110 PCIe Gen4x4 (64 Gb/s) mode**
- Supports RAID 0, RAID 1, RAID 5 and RAID 10 for SATA storage devices
- Supports RAID 0, RAID 1 and RAID 5 for M.2 NVMe storage devices
USB
- 1 x USB 3.2 Gen2 Type-A Port (10 Gb/s) (ReDriver) (Supports ESD Protection)
- 1 x USB 3.2 Gen2 Type-C Port (10 Gb/s) (ReDriver) (Supports ESD Protection)
- 4 x USB 3.2 Gen1 Ports (Supports ESD Protection)
- 2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)
- 2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports) (ASMedia ASM1074 hub)
https://www.asrock.com/mb/Intel/Z690%20Steel%20Legend/#Overview
