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Compact Mini-ITX board, black PCB, silver I/O shield, CPU socket and two vertical DDR4 slots visible

ASRock

ASRock Z390M-ITX/ac LGA 1151 Intel motherboard

SKU CH-QVVQ-0V75A

Mini ITX board for 8th and 9th Gen Intel Core CPUs with DDR4 up to 4000 MT/s, Ultra M.2, six SATA3 ports, Intel I219-V LAN and 802.11ac Wi-Fi

  • 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 9th and 8th Gen Intel Core processors on LGA 1151 socket
  • Compact Mini ITX form factor fits small chassis builds
  • Dual-channel DDR4 memory up to 4000 MHz overclocked speeds
  • Ultra M.2 slot with PCIe 3.0 x4 for fast NVMe storage
  • Intel I219-V Gigabit LAN plus bundled 802.11ac Wi-Fi module

Compact Z390 board for small-form-factor builds

The ASRock Z390M-ITX/ac is a Mini-ITX motherboard built on the Intel Z390 chipset with an LGA 1151 socket that accepts 8th and 9th generation Intel Core processors. It provides two DDR4 memory slots supporting dual-channel operation up to 32 GB and a single PCI Express 3.0 x16 slot for a graphics card. An Ultra M.2 socket handles M Key drives from 2230 to 2280 lengths, and six SATA3 connectors offer RAID 0, 1, 5 and 10. Onboard Intel I219-V LAN, Wi-Fi 802.11 ac and Realtek ALC892 7.1 channel audio complete the platform.

Suited to compact overclocking rigs.

This board suits builders who want Z390 overclocking features in a Mini-ITX footprint and need integrated Wi-Fi 802.11 ac plus wired networking. It will not work with 6th or 7th generation LGA 1151 processors despite the shared socket, so owners of those CPUs must choose a 100 or 200 series board instead. Users requiring more than two memory slots, multiple PCIe x16 slots or front-panel USB 3.1 Gen 2 headers should look at larger ATX or micro-ATX Z390 models.

The LGA 1151 (300 Series) socket decides

Only 8th and 9th generation Intel Core CPUs fit this socket; earlier LGA 1151 processors are physically identical but electrically incompatible and will not boot. Verify your processor generation before purchase, as no BIOS update can enable older chips on the Z390 chipset.

How it compares

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

Price $118.99
Pricier than about 61% 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 nameZ390M-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 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 ports6 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, 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)**
** Supports Intel Optane Technology
** Supports NVMe SSD as boot disks
** Supports ASRock U.2 Kit
Optane memory supportYes
SATA and RAID supportRAID 0, RAID 1, RAID 5, RAID 10, Intel Rapid Storage Technology 16
Audio & video
Audio chipRealtek ALC892
Connectivity
Ethernet controllerIntel I219-V
Second LAN controllerIntel I211-AT
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 slots1 x PCI Express 3.0 x16 Slot (PCIE1: x16 mode)
* 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)
PS/2 ports1 x PS/2 keyboard/mouse port
HDMI ports2 x HDMI
Ethernet port2 x RJ-45 LAN Ports with LED (ACT/LINK LED and SPEED LED)
DisplayPort connectors1 x DisplayPort 1.2
USB 3.1 ports5 x USB 3.1 Gen2 Type-A Ports (10Gb/s) (Supports ESD Protection)
USB 2.0 ports2 x USB 2.0 Ports (Supports ESD Protection)
USB-C ports1 x USB 3.1 Gen2 Type-C Port (10Gb/s) (Supports ESD Protection)
Audio jacksHD Audio Jacks: Line in / Front Speaker / Microphone
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
Size & build
Form factorMini ITX
Width and length6.7 in × 6.7 in
In the box
In the boxAccessories:
- Quick Installation Guide, Support CD, I/O Shield
- 2 x SATA Data Cables
- 2 x ASRock Wi-Fi 2.4/5 GHz Antennas
- 1 x Screw for M.2 Socket

Questions about this item

What PCIe generation does the single x16 slot use, and what bandwidth does that cap the GPU at?

The board provides one PCI Express 3.0 x16 slot running in x16 mode, so a graphics card is limited to PCIe 3.0 bandwidth.

What physical clearance does the Mini-ITX form factor and the vertical M.2 Key E slot with bundled Wi-Fi module require in a case?

The board fits any Mini-ITX chassis, but the vertical M.2 Key E socket occupies the rear I/O area, so the case must allow a module to protrude upward from the motherboard edge.

How is the bundled Wi-Fi 802.11 ac module installed, and what step do builders often miss?

Insert the module into the vertical M.2 Key E socket, secure it with the screw, then attach the two antenna cables to the gold connectors on the module before fitting the I/O shield.

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