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Black ATX motherboard with silver heatsinks, eight DDR4 slots and two full-length PCIe x16 slots

GIGABYTE

GIGABYTE GA-X99-UD4 Intel motherboard LGA 2011-v3 DDR4 64GB

SKU CH-T8WV-V4JEA

An ATX Intel X99 board with eight DDR4 slots supporting up to 64 GB, dual full-speed PCIe 3.0 x16 slots and ten SATA 6 Gb/s ports

  • ProcessorCore i7 (LGA2011-v3)
  • ChipsetIntel X99
  • Form factorATX
  • CPU socketLGA 2011-v3
  • Memory slot count8 × 288pin (DDR4)
  • Supported memoryDDR4 3000(O.C.) / 2800(O.C.) / 2666(O.C.) / 2400(O.C.) / 213
  • Supports 64 GB DDR4 across eight 288-pin slots
  • Quad-channel DDR4 up to 3000 MHz overclocked speeds
  • Dual PCI Express 3.0 x16 slots for multi-GPU builds
  • Ten SATA 6 Gb/s ports plus one SATA Express connector
  • Realtek ALC1150 7.1-channel audio with optical S/PDIF output

Socket LGA 2011-v3 platform

The GIGABYTE GA-X99-UD4 is an ATX motherboard built around the Intel X99 chipset for Core i7 processors in the LGA 2011-v3 package. It targets workstation and enthusiast builds that need quad-channel memory bandwidth and multi-GPU expandability in a standard form factor.

Expansion layout and storage

Two full-length PCI Express 3.0 x16 slots run at x16 each when used as a pair, while two additional x16 slots operate at x8 and share bandwidth with the first slot. Three PCI Express 2.0 x1 slots add peripheral capacity. Ten SATA 6Gb/s ports and one SATA Express connector provide high-density storage connectivity without occupying PCIe lanes.

Memory capacity and headroom

Eight 288-pin DDR4 slots support up to 64GB in quad-channel mode with validated speeds of 2133, 2400, 2666, 2800 and 3000 MHz via overclocking. The Realtek ALC1150 codec delivers 7.1-channel audio, while a single Gigabit LAN port and a mix of six USB 3.0 plus four USB 2.0 ports handle baseline I/O.

How it compares

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

Price $101.99
Typical for this category: the median of 2,965 items is $97.99.

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Specifications

Product
Brand nameGIGABYTE
Model nameGA-X99-UD4
Processor
ProcessorCore i7 (LGA2011-v3)
CPU socketLGA 2011-v3
ChipsetIntel X99
Memory
Memory slot count8 × 288pin (DDR4)
Supported memoryDDR4 3000(O.C.) / 2800(O.C.) / 2666(O.C.) / 2400(O.C.) / 2133
Max supported RAM64 GB
Memory channelsQuad Channel
Storage
SATA ports10 x SATA 6Gb/s
M.2 slots1 x M.2 Socket 1 connector for the wireless communication module (M2_WIFI)
SATA and RAID support0/1/5/10
Audio & video
Audio chipRealtek ALC1150
Sound channels7.1 Channels
Connectivity
Maximum network speed1 Gbit/s
Ports & slots
PCIe x1 slots3 x PCI Express x1 slots / (The PCI Express x1 slots conform to PCI Express 2.0 standard.)
Rear panel ports1 x Optical S/PDIF Out / 2 x PS/2 / 4 x USB 2.0/1.1 / 6 x USB 3.0
PS/2 ports1 x PS/2 keyboard port / 1 x PS/2 mouse port
Ethernet port1 x RJ45
USB 3.0 ports6 x USB 3.0
USB 2.0 ports4 x USB 2.0
S/PDIF output1 x Optical
Audio jacks5 Ports
Onboard USB headers2 x USB 3.0 + 4 x USB 2.0
Power
Power connectors24 Pin
Size & build
Form factorATX
Width and length12.01 in × 9.61 in
More details
SATA express1 x SATA Express connector

Questions about this item

Will my existing DDR4-2133 memory work without overclocking?

Yes, the board runs DDR4-2133 at stock speed; speeds above that require manual overclocking in the BIOS.

Can I install a 64 GB kit using all eight slots?

The board supports up to 64 GB across its eight 288-pin DDR4 slots, so a full 64 GB kit will work.

What happens to the top PCIe x16 slot if I add a card in the fourth slot?

Populating the fourth x16 slot forces the first slot to drop from x16 to x8 electrical bandwidth.

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