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Compact Mini-ITX motherboard with black PCB, silver heatsinks, and rear I/O shield

ASRock

ASRock Z390 PHANTOM GAMING-ITX/AC Intel motherboard

SKU CH-TJ3D-BECT5

Mini-ITX board for 8th and 9th Gen Intel Core CPUs with dual-channel DDR4 up to 4500+(OC), one PCIe 3.0 x16 slot, dual M.2 sockets, four SATA3 ports, Intel 1GbE, Wi-Fi 802.11 ac and 7.1-channel audio

  • ProcessorSupports 9th and 8th Gen Intel Core processors (Socket 1151)
  • ChipsetIntel Z390
  • Form factorMini ITX
  • CPU socketLGA 1151 (300 Series)
  • CPU technologiesTurbo Boost Technology 2.0
  • Onboard video chip* Intel UHD Graphics Built-in Visuals and the VGA outputs ca
  • Supports 8th and 9th Gen Intel Core processors on LGA 1151 socket
  • Dual-channel DDR4 memory up to 32 GB with speeds to 4500+(OC)
  • Ultra M.2 socket delivers PCIe 3.0 x4 bandwidth for fast NVMe storage
  • Intel I219-V Gigabit LAN plus integrated 802.11 ac Wi-Fi module
  • Realtek ALC1220 codec provides 7.1-channel high-definition audio

Z390 Mini-ITX board for 8th and 9th Gen Intel Core

This Mini-ITX motherboard uses the Intel Z390 chipset and the LGA 1151 (300 Series) socket. It accepts 8th and 9th generation Intel Core processors and is not backward compatible with older LGA 1151 CPUs. The board targets compact builds that still want overclocking headroom.

Bundled Wi-Fi module and vertical M.2 Key E slot

A Wi-Fi 802.11 ac module with Intel CNVi ships in the box and installs into a vertical M.2 Key E socket on the rear I/O. This frees the two Ultra M.2 Key M slots for storage. The bundle removes the need to source a separate wireless card.

Dual-channel DDR4 up to 32 GB

Two 288-pin slots support dual-channel DDR4 up to 32 GB and speeds listed up to 4500+(OC). The single PCI Express 3.0 x16 slot features 15µ gold contacts and can be split to two x8 lanes with a riser card. Four SATA3 6.0Gb/s ports and two M.2 sockets provide storage flexibility.

How it compares

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

Price $125.99
Pricier than about 63% of the 2,965 comparable items (median $97.99).

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 nameZ390 PHANTOM GAMING-ITX/AC
Processor
ProcessorSupports 9th and 8th Gen Intel Core processors (Socket 1151)
* Not backward compatible with older generation of LGA 1151 CPUs
CPU socketLGA 1151 (300 Series)
ChipsetIntel Z390
CPU technologiesTurbo Boost Technology 2.0
Memory
Memory slot count2 × 288pin (DDR4)
Supported memoryDDR4 4500+(OC)*/ 4333(OC)/ 4266(OC)/ 4133(OC)/ 4000(OC)/ 3866(OC)/ 3800(OC)/ 3733(OC)/ 3600(OC)/ 3200(OC)/ 2933(OC)/ 2800(OC)/ 2666/ 2400/ 2133
* Please refer to Memory Support List on ASRock's website for more information. (http://www.asrock.com/)
Max supported RAM32 GB
Memory channelsDual Channel
Storage
SATA ports4 x SATA3 6.0Gb/s Connectors, support RAID, NCQ, AHCI and Hot Plug*
* If M2_1 is occupied by a SATA-type M.2 device, SATA3_1 will be disabled.
M.2 slots1 x Ultra M.2 Socket (M2_1), supports M Key type 2280 M.2 SATA3 6.0Gb/s module and M.2 PCI Express module up to Gen3 x4 (32Gb/s)**
1 x Ultra M.2 Socket (M2_2), supports M Key type 2260/2280 M.2 SATA3 6.0Gb/s module and M.2 PCI Express module up to Gen3 x4 (32Gb/s)**
** Supports Intel Optane Technology
** Supports NVMe SSD as boot disks
SATA and RAID supportRAID 0, RAID 1, RAID 5, RAID 10, Intel Rapid Storage Technology 16
Graphics
Onboard video chip* Intel UHD Graphics Built-in Visuals and the VGA outputs can be supported only with processors which are GPU integrated.
Supports Intel UHD Graphics Built-in Visuals: Intel Quick Sync Video with AVC, MVC (S3D) and MPEG-2 Full HW Encode1, Intel InTru 3D, Intel Clear Video HD Technology, Intel Insider, Intel UHD Graphics
DirectX 12
HWAEncode/Decode: AVC/H.264, HEVC/H.265 8-bit, HEVC/H.265 10-bit, VP8, VP9 8-bit, VP9 10-bit (Decode only), MPEG2, MJPEG, VC-1 (Decode only)
Three graphics output options: HDMI, DisplayPort 1.2 and Intel Thunderbolt 3
Supports Triple Monitor
Supports HDMI 2
Audio & video
Audio chipRealtek ALC1220
Sound channels7.1 Channels
Connectivity
Ethernet controllerIntel I219-V
Maximum network speed1 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 1,733 Mbit/s
2 antennas to support 2 (Transmit) x 2 (Receive) diversity technology
Supports MU-MIMO
Bluetooth supportSupports Bluetooth 5.0 + High speed class II
Ports & slots
PCIe 3.0 x16 slots1 x PCI Express 3.0 x16 Slot (PCIE1: x16 mode)
* Supports PCIe riser cards to extend one x16 slot to two x8 slots
* Supports NVMe SSD as boot disks
PS/2 ports1 x PS/2 keyboard/mouse port
HDMI ports1 x HDMI
Ethernet port1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
DisplayPort connectors1 x DisplayPort 1.2
Thunderbolt ports1 x Intel Thunderbolt 3 (Compatible with USB 3.1 Gen2 and USB-C Display)*
* Supports USB PD 2.0 up to 12 V@3A (36 W) charging
USB 3.1 ports4 x USB 3.1 Gen2 Type-A Ports (10Gb/s) (Supports ESD Protection)
2 x USB 3.1 Gen1 Ports (Supports ESD Protection)
S/PDIF output1 x Optical
Audio jacksHD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone (Gold Audio Jacks)
Antenna connectors2 x Antenna Ports
Onboard USB headers1 x USB 2.0 Header (Supports 2 USB 2.0 ports) (Supports ESD Protection)
1 x USB 3.1 Gen1 Header (Supports 2 USB 3.1 Gen1 ports) (Supports ESD Protection)
Power
Power connectors1 × 24-pin ATX Power Connector
1 × 8-pin 12 V Power Connector (Hi-Density Power Connector)
Size & build
Form factorMini ITX
Width and length6.7 in × 6.7 in
More details
LightingRGB

Questions about this item

Will the 15µ gold contacts on the PCIe x16 slot need periodic cleaning or replacement?

The 15µ gold contacts on the PCIe x16 slot are designed for long-term durability and do not require scheduled cleaning or replacement under normal use.

What thermal limit appears first when the board runs a 9th Gen Core CPU at full load all day?

The VRM and chipset heatsinks on this Mini-ITX board are the first components to hit thermal saturation under sustained full-load operation.

How loud does the chipset fan get and what is the power draw when the system idles at the desktop for hours?

The board has no chipset fan; idle power draw is dominated by the CPU and memory, and acoustic output is limited to the CPU cooler and case fans.

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