B660M-HDV Supports 12th Gen Intel Core™ Processors (LGA1700) 6 Phase Power Design Supports DDR4 5066MHz (OC) 1 PCIe 4.0 x16, 2 PCIe 3.0 x1 1 M.2 Key-E for WiFi Graphics Output Options: HDMI, DisplayPort, D-Sub Realtek ALC887/897 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) 6 USB 3.2 Gen1 (3 Rear, 1 Rear Type-C, 2 Front) 5 USB 2.0 (2 Rear, 3 Front) Intel Gigabit LAN Unique Feature ASRock Super Alloy- Premium Power Choke- Sapphire Black PCB- High Density Glass Fabric PCBASRock Hyper M.2 (PCIe Gen4x4)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- 6 Power Phase design- Supports Intel Hybrid Technology- Supports Intel Turbo Boost Max 3.0 Technology Chipset - Intel B660 Memory - Dual Channel DDR4 Memory Technology- 2 x DDR4 DIMM Slots- Supports DDR4 non-ECC, un-buffered memory up to 5066+(OC)*- Supports ECC UDIMM memory modules (operate in non-ECC mode)- Max. capacity of system memory: 64GB- 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, VCCIN AUX, +1.05V PROC, +0.82V PCH, +1.05V PCH Voltage Multi-adjustment Graphics - Intel Xe Graphics Architecture (Gen 12)- Three graphics output options: D-Sub, HDMI and DisplayPort 1.4- 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 D-Sub with max. resolution up to 1920x1200 @ 60Hz- 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 ALC897/887 Audio Codec)- Supports Surge Protection 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 - 1 x PCIe Gen4x16 Slot*- 2 x PCIe Gen3x1 Slots- 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module *Supports NVMe SSD as boot disks Storage - 4 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 2260/2280 SATA3 6.0 Gb/s & PCIe Gen3x4 (32 Gb/s) modes** *If M2_2 is occupied by a SATA-type M.2 device, SATA3_3 will be disabled. **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 COM Port Header- 1 x SPI TPM Header- 1 x Chassis Intrusion and Speaker Header- 1 x CPU Fan Connector (4-pin)*- 1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)**- 2 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control)***- 1 x 24 pin ATX Power Connector- 1 x 8 pin 12V Power Connector- 1 x Front Panel Audio Connector- 2 x USB 2.0 Headers (Support 3 USB 2.0 ports) (Supports ESD Protection)- 1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports) (Supports ESD Protection) *The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fa