ASRock MB Sc TR4 399M TAICHI, MD X399, 4xDDR4, VGA

- Supports AMD TR4 Socket Ryzen Threadripper Series CPUs
- IR Digital PWM
- 11 Power Phase design

- Quad Channel DDR4 Memory Technology
- 4 x DDR4 DIMM Slots
- Supports DDR4 3600+(OC) / 3200(OC) / 2933(OC) / 2667/2400/2133 ECC & non-ECC, un-buffered memory (U-DIMM)*
- Max. capacity of system memory: 64GB**
- 15µ Gold Contact in DIMM Slots

*Please refer to Memory Support List on ASRock's website for more information.

**Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows 32-bit OS. For Windows 64-bit OS with 64-bit CPU, there is no such limitation.

- n/a

- 3 x PCI Express 3.0 x16 Slots (PCIE1/PCIE2/PCIE3: single at x16 (PCIE1); dual at x16 (PCIE1) / x16 (PCIE2); triple at x16 (PCIE1) / x16 (PCIE2) / x16 (PCIE3))*
- Supports AMD Quad CrossFireX™ and CrossFireX™
- Supports NVIDIA Quad SLI™ and SLI™
- 1 x Vertical M.2 Socket (Key E) with the bundled WiFi-802.11ac module (on the rear I/O)
- 15µ Gold Contact in VGA PCIe Slot (PCIE1, PCIE2 and PCIE3)

*Supports NVMe SSD as boot disks

- 8 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug
- 1 x Ultra M.2 Socket (M2_1), supports M Key type 2242/2260/2280/22110 M.2 PCI Express module up to Gen3 x4 (32 Gb/s)*
- 1 x Ultra M.2 Socket (M2_2), supports M Key type 2242/2260/2280 M.2 PCI Express module up to Gen3 x4 (32 Gb/s)*
- 1 x Ultra M.2 Socket (M2_3), supports M Key type 2230/2242/2260/2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x4 (32 Gb/s)*
- 1 x U.2 Connector**

*Supports NVMe RAID (RAID 0, RAID 1 and RAID 10)
Supports NVMe SSD as boot disks
Supports ASRock U.2 Kit

**If M2_1 is plugged, U.2 Connector will be disabled.

- Gigabit LAN 10/100/1000 Mb/s
- 2 x GigaLAN Intel I211AT
- Supports Wake-On-LAN
- Supports Lightning/ESD Protection
- Supports Dual LAN with Teaming*
- Supports Energy Efficient Ethernet 802.3az
- Supports PXE

*Teaming is supported on Windows 10 RS2, RS3 and RS4.

- Intel 802.11ac WiFi Module
- Supports IEEE 802.11a/b/g/n/ac
- Supports Dual-Band (2.4/5 GHz)
- Supports high speed wireless connections up to 433Mbps
- Supports Bluetooth 4.2 / 3.0 + High speed class II

- 1 x TPM Header
- 1 x Power LED and Speaker Header
- 1 x RGB LED Header*
- 1 x CPU Fan Connector (4-pin)**
- 1 x CPU Optional/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)***
- 2 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)
- 1 x Chassis Optional/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)****
- 1 x 24 pin ATX Power Connector (Hi-Density Power Connector)
- 1 x 8 pin 12V Power Connector (Hi-Density Power Connector)
- 1 x 4 pin 12V Power Connector (Hi-Density Power Connector)
- 1 x Front Panel Audio Connector (15µ Gold Audio Connector)*****
- 1 x Right Angle Front Panel Audio Connector*****
- 2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)
- 2 x USB 3.1 Gen1 Headers (Support 4 USB 3.1 Gen1 ports) (Supports ESD Protection)
- 1 x Clear CMOS Button
- 1 x Dr. Debug with LED
- 1 x Power Button
- 1 x Reset Button
- 1 x CPU Xtreme OC Switch

*Supports in total up to 12V/3A, 36W LED Strip

**The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.

***The CPU Optional/Water Pump Fan supports the water cooler fan of maximum 1.5A (18W) fan power.

****The Chassis Optional/Water Pump Fan supports the water cooler fan of maximum 1.5A (18W) fan power.
CPU_FAN1, CHA_FAN1, CHA_FAN2, CPU_OPT/W_PUMP and CHA_FAN3/W_PUMP can auto detect if 3-pin or 4-pin fan is in use.

*****Connect the audio device to either one of the audio connectors.

- 7.1 CH HD Audio with Content Protection (Realtek ALC1220 Audio Codec)
- Premium Blu-ray Audio support
- Supports Surge Protection
- Supports Purity Sound™ 4
- Nichicon Fine Gold Series Audio Caps
- 120dB SNR DAC with Differential Amplifier
- NE5532 Premium Headset Amplifier for Front Panel Audio Connector (Supports up to 600 Ohm headsets)
- Pure Power-In
- Direct Drive Technology
- PCB isolate shielding
- Impedance Sensing on Rear Out port
- Individual PCB Layers for R/L Audio Channel
- Gold Audio Jacks
- 15µ Gold Audio Connector
- Supports DTS Connect

- 2 x Antenna Ports
- 1 x PS/2 Mouse/Keyboard Port
- 1 x Optical SPDIF Out Port
- 1 x USB 3.1 Gen2 Type-A Port (10 Gb/s) (Supports ESD Protection)
- 1 x USB 3.1 Gen2 Type-C Port (10 Gb/s) (Supports ESD Protection)
- 8 x USB 3.1 Gen1 Ports (Supports ESD Protection)*
- 2 x RJ-45 LAN Ports with LED (ACT/LINK LED and SPEED LED)
- 1 x BIOS Flashback Button
- HD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone (Gold Audio Jacks)

*Ultra USB Power is supported on USB3_5 port.
ACPI wake-up function is not supported on USB3_5 port.

Software
- ASRock A-Tuning
- ASRock RGB LED
- ASRock APP Charger
- ASRock XFast LAN
UEFI
- ASRock Full HD UEFI
- ASRock Instant Flash
- ASRock Easy RAID Installer

*These utilities can be downloaded from ASRock Live Update & APP Shop.