Debuting a new motherboard for Haswell-E comprehensive and affordable.

In order to get as much as possible from the market related to HEDT Intel platforms, i.e. those based on Haswell-E CPU, GIGABYTE decided to release on the market an exciting new motherboard that will directly compete with the ASUS X99-A and MSI X99S Gaming 7 in a price range of between between 199 and 249 US dollars.


Although at first glance the new board may seem a replica of sister X99-UD4, in fact the two boards have a different PCB.

Strictly with ATX form factor, the GIGABYTE GA-X99-SLI provides a six-phase VRM and is powered by a classic 24-pin ATX connector and an 8-pin EPS, plus an additional 4 pin molex able to make more stable slots PCI-E in case of installation of multiple VGA simultaneously in SLI or CrossFireX.

On memory side, it support DDR4 up to 8 modules clocked at 3333MHz, while for connectivity, we find a slot M.2 (PCIe 2.0 x2 – SATA 6 Gbps), a SATA Express 10 Gbps, ten SATA 6 Gbps (including only six usable in RAID), eight USB 3.0 ports (two of which are internal) and a Gigabit Ethernet controlled by a controller Intel.

Good also the audio codec that combines a Realtek ALC1150 with a SNR of 115 dBA, audio-grade electrolytic capacitors, an amplifier to support for headphones with impedance up to 600 ohm and PCB isolated from any interference.