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Micro ATX motherboard in black with silver heatsinks and gold PCIe contacts

ASRock

ASRock X399M TAICHI sTR4 AMD motherboard

SKU CH-WT2M-8B1FH

Micro-ATX board for Threadripper CPUs with quad-channel DDR4 up to 3600 MT/s, three PCIe 3.0 x16 slots, dual Intel 1 GbE, 802.11 ac Wi-Fi and Bluetooth 4.2

  • CPU socketsTR4
  • ChipsetAMD X399
  • Form factorMicro ATX
  • Memory slot count4 × 288pin (DDR4)
  • Supported memoryDDR4 3600+(OC)/ 3200(OC)/ 2933(OC)/ 2667/ 2400/ 2133 * Pleas
  • Max supported RAM64 GB * Due to the operating system limitation, the actual m
  • Quad-channel DDR4 up to 3600 MHz OC for high memory bandwidth
  • Three full-length PCIe 3.0 x16 slots for multi-GPU or accelerator builds
  • Two Ultra M.2 sockets with PCIe Gen3 x4 for fast NVMe storage
  • Dual Intel I211AT 1 GbE ports plus integrated Wi-Fi 802.11 ac and Bluetooth 4.2
  • Realtek ALC1220 7.1-channel audio with premium capacitors for clear sound

AMD X399 sTR4 Micro ATX board

The ASRock X399M TAICHI pairs the AMD X399 chipset with the sTR4 socket for Ryzen Threadripper processors. Four 288-pin slots support quad-channel DDR4 up to 64 GB. Three full-length PCI Express 3.0 x16 slots and two Ultra M.2 sockets give high-bandwidth expansion in a Micro ATX footprint.

Sustained-load behaviour

Heavy multi-threaded workloads run across all Threadripper cores while the quad-channel memory controller feeds data at up to 3600 MT/s when overclocked. Dual Intel I211AT 1 Gbps LAN ports and the bundled Intel 802.11 ac Wi-Fi module maintain network throughput without thermal throttling during long render or compile sessions.

Practical interface limits

PCI Express 3.0 x16 slots deliver 16 GT/s per lane; each Ultra M.2 socket caps at Gen3 x4 for 32 Gb/s. SATA3 ports top out at 6.0 Gb/s with RAID 0/1/10 support. Wireless reaches 433 Mbps on 2.4/5 GHz bands and Bluetooth 4.2 handles peripheral traffic.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $338.99
Pricier than about 59% of the 1,906 comparable items (median $224.49).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameASRock
Model nameX399M TAICHI
Processor
CPU socketsTR4
ChipsetAMD X399
Memory
Memory slot count4 × 288pin (DDR4)
Supported memoryDDR4 3600+(OC)/ 3200(OC)/ 2933(OC)/ 2667/ 2400/ 2133
* Please refer to Memory Support List on ASRock's website for more information.
Memory channelsQuad Channel
Storage
SATA ports8 x SATA3 6.0Gb/s Connectors, support RAID, NCQ, AHCI and Hot Plug
M.2 slots1 x Ultra M.2 Socket (M2_1), supports M Key type 2242/2260/2280/22110 M.2 PCI Express module up to Gen3 x4 (32Gb/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 (32Gb/s)*
1 x Ultra M.2 Socket (M2_3), supports M Key type 2230/2242/2260/2280 M.2 SATA3 6.0Gb/s module and M.2 PCI Express module up to Gen3 x4 (32Gb/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 U.2 Connector is plugged, M2_1 will be disabled
SATA and RAID support0/1/10
Graphics
Onboard video chipNone
Audio & video
Audio chipRealtek ALC1220
Sound channels7.1 Channels
Connectivity
Ethernet controller2 x Intel I211AT
Maximum network speed2 × 1 Gbit/s
Wi-Fi standardIntel 802.11 ac Wi-Fi Module
Supports IEEE 802.11 a/b/g/n/ac
Supports Dual-Band (2.4/5 GHz)
Supports high speed wireless connections up to 433 Mbit/s
Bluetooth supportSupports Bluetooth 4.2 / 3.0 + High speed class II
Ports & slots
PCIe 3.0 x16 slots3 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 NVMe SSD as boot disks
Additional slots1 x Vertical M.2 Socket (Key E) with the bundled Wi-Fi 802.11 ac module (on the rear I/O)
15µ Gold Contact in VGA PCIe Slot (PCIE1, PCIE2 and PCIE3)
Onboard USB headers2 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)
Power
Power connectors1 × 24-pin ATX Power Connector (Hi-Density Power Connector)
1 × 8-pin 12 V Power Connector (Hi-Density Power Connector)
1 × 4-pin 12 V Power Connector (Hi-Density Power Connector)
Size & build
Form factorMicro ATX
Width and length9.6 in × 9.6 in
In the box
In the boxAccessories:
- Quick Installation Guide, Support CD, I/O Shield
- 4 x SATA Data Cables
- 1 x ASRock SLI_HB_Bridge_1S Card
- 1 x ASRock SLI_HB_Bridge_2S Card
- 2 x ASRock Wi-Fi 2.4/5 GHz Antennas
- 3 x Screws for M.2 Sockets
More details
LightingRGB

Questions about this item

How loud or hot does the ASRock X399M TAICHI get when running a Threadripper CPU all day?

The board has no onboard video chipset so it relies entirely on your CPU cooler and case airflow; the 15 µm gold contacts on the three PCIe x16 slots and the dual Intel I211AT LAN chips add negligible heat, while the Realtek ALC1220 audio and bundled 802.11 ac Wi-Fi module draw very little power.

What other parts must I already own for this motherboard to work?

You need a Ryzen Threadripper processor for the sTR4 socket, DDR4 memory modules up to 64 GB total across the four 288-pin slots, a graphics card because there is no integrated video, and a power supply with the required EPS connectors for the CPU and PCIe devices.

Will my existing SATA SSDs and PCIe 3.0 add-in cards work with this X399 board?

Yes — the board provides eight SATA3 6.0 Gb/s ports with RAID 0/1/10 support and three PCI Express 3.0 x16 slots that can run at x16/x16/x16, so older SATA drives and PCIe 3.0 cards install and operate normally.

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