B660M Pro RS Supports 12th Gen Intel Core™ Processors (LGA1700) 8 Phase Power Design Supports DDR4 4800MHz (OC) 1 PCIe 4.0 x16, 1 PCIe 3.0 x16, 1 PCIe 3.0 x1 1 M.2 Key-E for WiFi Graphics Output Options: HDMI, DisplayPort Realtek ALC897 7.1 CH HD Audio Codec, Nahimic Audio 4 SATA3 1 Hyper M.2 (PCIe Gen4 x4) 1 Ultra M.2 (PCIe Gen3 x4 & SATA3) 7 USB 3.2 Gen1 (4 Rear, 2 Front, 1 Front Type-C) 6 USB 2.0 (2 Rear, 4 Front) Intel Gigabit LAN Unique Feature ASRock Super Alloy- Premium Power Choke- Sapphire Black PCB- High Density Glass Fabric PCBASRock Intel 4-Layer Memory POOL (Planes on Outer Layers) Technology ASRock Steel Slot ASRock Full Coverage M.2 Heatsink ASRock Hyper M.2 (PCIe Gen4x4) ASRock POST Status Checker (PSC)ASRock Full Spike Protection (for all USB, Audio, LAN Ports)ASRock Live Update & APP Shop CPU - Supports 12th Gen Intel Core™ Processors (LGA1700)- Digi Power design- 8 Power Phase design- Supports Intel Hybrid Technology- Supports Intel Turbo Boost Max 3.0 Technology Chipset - Intel B660 Memory - Dual Channel DDR4 Memory Technology- 4 x DDR4 DIMM Slots- Supports DDR4 non-ECC, un-buffered memory up to 4800+(OC)*- Supports ECC UDIMM memory modules (operate in non-ECC mode)- Max. capacity of system memory: 128GB- Supports Intel Extreme Memory Profile (XMP) 2.0 *Supports DDR4 3200 natively. BIOS - 128Mb AMI UEFI Legal BIOS with multilingual GUI support- ACPI 6.0 Compliant wake up events- SMBIOS 2.7 Support- CPU Core/Cache, CPU GT, DRAM, VDD_IMC, VCCIN AUX, +1.05V PROC, +0.82V PCH, +1.05V PCH Voltage Multi-adjustment 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 / 5K (5120x3200) @ 120Hz- Supports HDCP 2.3 with HDMI 2.1 TMDS Compatible and DisplayPort 1.4 Ports *Intel UHD Graphics Built-in Visuals and the VGA outputs can be supported only with processors which are GPU integrated. Audio - 7.1 CH HD Audio (Realtek ALC897 Audio Codec)- Supports Surge Protection- Nahimic Audio LAN - Gigabit LAN 10/100/1000 Mb/s- Giga PHY Intel I219V- Supports Wake-On-LAN- Supports Lightning/ESD Protection- Supports Energy Efficient Ethernet 802.3az- Supports UEFI PXE Slots - 2 x PCIe x16 Slots (PCIE1/PCIE3: single at Gen4x16 (PCIE1); dual at Gen4x16 (PCIE1) / Gen3x4 (PCIE3))*- 1 x PCIe Gen3x1 Slot- Supports AMD CrossFire™- 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module and Intel CNVi (Integrated WiFi/BT) *Supports NVMe SSD as boot disks Storage - 4 x SATA3 6.0 Gb/s Connectors** If M2_2 is occupied by a SATA-type M.2 device, SATA3_0 will be disabled.- 1 x Hyper M.2 Socket (M2_1, Key M), supports type 2242/2260/2280 PCIe Gen4x4 (64 Gb/s) mode**- 1 x Ultra M.2 Socket (M2_2, Key M), supports type 2280 SATA3 6.0 Gb/s & PCIe Gen3 x4 (32 Gb/s) mode** *Supports Intel Optane™ Technology (M2_2 only)Supports Intel Volume Management Device (VMD)Supports NVMe SSD as boot disksSupports ASRock U.2 Kit RAID - Supports RAID 0, RAID 1, RAID 5 and RAID 10 for SATA storage devices Connector - 1 x SPI TPM Header- 1 x Chassis Intrusion and Speaker Header- 1 x RGB LED Header* Supports in total up to 12V/3A, 36W LED Strip- 3 x Addressable LED Headers* Support in total up to 5V/3A, 15W LED Strip- 1 x CPU Fan Connector (4-pin)* The CPU Fan Connector supports the CPU fan of ma