Note：Used - ASRock Z390M Pro4 Motherboard
This is a second-hand motherboard, and we have conducted testing before shipping to ensure that all motherboards operate normally. The shipped items do not include the accessories & battery displayed in the original version. Please refer to the received physical items and accessories as the standard. Thank you.

Specifications:
Brand: ASRock Z390M Pro4
Chipset Type: Intel Z390 Chipset
CPU Socket: LGA 1151
RAM Memory Technology: 4x DDR4, Dual Channels
Memory Storage Capacity: 128GB
Compatible Devices: Personal Computer
Platform: Windows 10, Windows 11
Compatible Processors: Supports 8th Generation Intel Core i7/i5/i3/Pentium/Celeron Processors (Socket 1151)
BIOS: 128Mb AMI UEFI Legal BIOS with multilingual GUI support, ACPI 6.0 Compliant wake-up events, SMBIOS 2.7 Support, CPU, DRAM, PCH 1.0V, VCCIO, VCCSA, VCCST Voltage Multi-adjustment;
Size: 24.4cmx24.4cm
Form Factor: M-ATX
Weight: about 1100g

CPU:
- Supports 9th & 8th Generation Intel Core i7/i5/i3/Pentium/Celeron processors with Socket 1151
- Supports CPU up to 95W
- Digi Power design
- 10 Power Phase design
- Supports Intel Turbo Boost 2.0 Technology
- Supports Intel K-Series unlocked CPUs
- Supports ASRock BCLK Full-range Overclocking
Chipset: Intel Z390 Chipset

Memory:
Dual Channel DDR4 Memory Technology
- 4 x DDR4 DIMM Slots
- Supports DDR4 4300+(OC)* / 4266(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3200(OC) / 2933(OC) / 2800(OC) / 2666 / 2400 / 2133 non-ECC, un-buffered memory
- Supports ECC UDIMM memory modules (operate in non-ECC mode)
- Max. capacity of system memory: 128GB
- Supports Intel® Extreme Memory Profile (XMP) 2.0
- 15μ Gold Contact in DIMM Slots
* 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 a 64-bit CPU, there is no such limitation.

Multi-GPU Support:
Supports AMD Quad CrossFireX and CrossFireX

Onboard Graphics:
- 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
- HWA Encode/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
- Three graphics output options: D-Sub, DVI-D, and HDMI
- Supports Triple Monitor
- Supports HDMI 1.4 with max. resolution up to 4K x 2K (4096x2160) @ 30Hz
- Supports DVI-D with max. resolution up to 1920x1200 @ 60Hz
- Supports D-Sub with max. resolution up to 1920x1200 @ 60Hz
- Supports Auto Lip Sync, Deep Color (12bpc), xvYCC, and HBR (High Bit Rate Audio) with HDMI 1.4 Port (Compliant HDMI monitor is required)
- Supports HDCP 2.2 with DVI-D and HDMI 1.4 Ports
- Supports 4K Ultra HD (UHD) playback with HDMI 1.4 Port
*Intel® UHD Graphics Built-in Visuals and the VGA outputs can be supported only with processors which are GPU integrated.

Expansion Slots:
- 2 x PCI Express 3.0 x16 Slots (PCIE1/PCIE4: single at x16 (PCIE1); dual at x16 (PCIE1) / x4 (PCIE4))
- 2 x PCI Express 3.0 x1 Slots (Flexible PCIe)
- Supports AMD Quad CrossFireX and CrossFireX
- 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module and Intel CNVi (Integrated WiFi/BT)
* Supports NVMe SSD as boot disks
* Supports CNVio1 WiFi module(Intel Wireless-AC 9560/9462/9461) only.

Storage:
- 6 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1, RAID 5, RAID 10, Intel® Rapid Storage Technology 16), NCQ, AHCI and Hot Plug*
- 1 x Ultra M.2 Socket (M2_1), supports M Key type 2230/2242/2260/2280 M.2 PCI Express module up to Gen3 x4 (32 Gb/s)
- 1 x Ultra M.2 Socket (M2_2), 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)
* If M2_2 is occupied, SATA3_4 and SATA3_5 will be disabled.
* Supports Intel Optane Technology
Supports NVMe SSD as boot disks
Supports ASRock U.2 Kit

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 PXE

Audio:
- 7.1 CH HD Audio with Content Protection (Realtek ALC892 Audio Codec)
- Premium Blu-ray Audio support
- Supports Surge Protection
- ELNA Audio Caps
* To configure 7.1 CH HD Audio, it is required to use an HD front panel audio module and enable the multi-channel audio feature through the audio driver.

Back I/O Ports:
- 1 x PS/2 Mouse Port
- 1 x PS/2 Keyboard Port
- 1 x D-Sub Port
- 1 x DVI-D Port
- 1 x HDMI 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)
- 4 x USB 3.1 Gen1 Ports (Supports ESD Protection)
- 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
- HD Audio Jacks: Line in / Front Speaker / Microphone

Internal connectors:
- 1 x COM Port Header
- 1 x 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)
- 2 x USB 3.1 Gen1 Headers (Support 4 USB 3.1 Gen1 ports) (Supports ESD Protection)
- 1 x Performance Mode / Easy OC Header
*The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.
* The CPU/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.
* The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.
CPU_FAN2/WP, CHA_FAN1/WP and CHA_FAN2/WP can auto detect if 3-pin or 4-pin fan is in use.

Software and UEFI
Software:
- ASRock A-Tuning
- ASRock XFast LAN
UEFI:
- ASRock EZ Mode
- ASRock Full HD UEFI
- ASRock My Favorites in UEFI
- ASRock Instant Flash
- ASRock Internet Flash
- ASRock Easy RAID Installer
*These utilities can be downloaded from ASRock Live Update & APP Shop.

Hardware Monitor:
- Temperature Sensing: CPU, CPU/Water Pump, Chassis/Water Pump Fans
- Fan Tachometer: CPU, CPU/Water Pump, Chassis/Water Pump Fans
- Quiet Fan (Auto adjust the chassis fan speed by CPU temperature): CPU, CPU/Water Pump, Chassis/Water Pump Fans
- Fan Multi-Speed Control: CPU, CPU/Water Pump, Chassis/Water Pump Fans
- CASE OPEN detection
- Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore, DRAM, PCH 1.0V

Unique Feature:
ASRock USB 3.1 Gen2
- ASRock USB 3.1 Gen2 Type-A Port (10 Gb/s)
- ASRock USB 3.1 Gen2 Type-C Port (10 Gb/s)
ASRock Super Alloy
- Premium 45A Power Choke
- Sapphire Black PCB
- High Density Glass Fabric PCB
ASRock Intel® 4-Layer Memory POOL (Planes on Outer Layers) Technology
ASRock Ultra M.2 (PCIe Gen3 x4 & SATA3)
ASRock Full Spike Protection (for all USB, Audio, LAN Ports)
ASRock Live Update & APP Shop

Operating System Support:
Support for Windows 10 64-bit, Windows 11 64-bit

Package Included:
1x ASRock Z390M Pro4 Motherboard