GIGABYTE Z390 UD DDR4 Intel Motherboard

The Gigabyte Z390 UD DDR4 is an ATX-form-factor motherboard designed around the Intel Z390 Express Chipset. It fits into a standard ATX case at 30.5 cm x 23.0 cm and uses the LGA1151 socket to support Intel 8th and 9th Generation Core processors — including Core i9, Core i7, Core i5, Core i3, Pentium, and Celeron lineups. Memory capacity is substantial for this platform: four DDR4 DIMM slots support up to 128 GB of system memory (up to 32 GB per DIMM) in dual-channel configuration. Native JEDEC speeds of 2133, 2400, and 2666 MHz are complemented by XMP overclocking profiles that can push memory to DDR4-4266 (O.C.). ECC unbuffered DIMMs are electrically compatible but operate in non-ECC mode. Storage is handled by a single M.2 Socket 3 connector (M key, supporting type 2242 through 22110 drives via SATA or PCIe x4/x2 NVMe) alongside six SATA 6 Gb/s ports. RAID 0, 1, 5, and 10 configurations are supported, and the board is Intel Optane Memory Ready for caching acceleration on mechanical drives. The power delivery stage uses a 10+2 phase digital PWM design with Low RDS MOSFETs, fed by a 24-pin ATX main connector, an 8-pin ATX 12 V connector, and an additional 4-pin ATX 12 V connector. Expansion is provided by one PCIe 3.0 x16 slot (running at x16), two additional PCIe x16 slots (each running at x4), and three PCIe x1 slots. AMD Quad-GPU CrossFire and 2-Way AMD CrossFire are supported for multi-GPU workloads. Connectivity on the rear I/O panel includes six USB 3.1 Gen 1 ports, one HDMI 1.4 port (supporting up to 4096×2160 at 30 Hz via Intel integrated graphics), one RJ-45 Gigabit Ethernet port (Realtek GbE, 10/100/1000 Mbit), three audio jacks, and PS/2 mouse and keyboard ports. A Thunderbolt add-in card connector is present board for optional Thunderbolt 3 expansion. Audio is handled by a Realtek ALC887 codec delivering 2/4/5.1/7.1-channel High Definition Audio with S/PDIF output. The board includes one RGB LED strip header for addressable lighting customization. Smart Fan 5 technology provides multiple temperature sensor inputs and hybrid fan headers with FAN STOP functionality, allowing fans to halt at low system temperatures. The AMI UEFI BIOS (128 Mbit flash) supports Q-Flash for convenient firmware updates. The board ships with a 3-year manufacturer warranty. Verified Specifications: – Socket: LGA1151 | Chipset: Intel Z390 Express – Memory: 4x DDR4 DIMM, up to 128 GB, DDR4-2133 to DDR4-4266 (O.C.), XMP support – Storage: 1x M.2 (2242/2260/2280/22110, SATA + PCIe x4 NVMe), 6x SATA 6 Gb/s, RAID 0/1/5/10 – Expansion: 1x PCIe 3.0 x16, 2x PCIe 3.0 x16 (x4 electrical), 3x PCIe x1 – USB: 8x USB 3.1 Gen 1 (6 rear + 2 internal), 2x USB 2.0 (internal header) – Audio: Realtek ALC887, 7.1-channel HD Audio, S/PDIF out – LAN: Realtek GbE (10/100/1000 Mbit) – Display: 1x HDMI 1.4 (4096×2160 @ 30 Hz, integrated graphics only) – Form Factor: ATX, 30.5 cm x 23.0 cm – Warranty: 3 Years