How much RAM does the Gigabyte X299 UD4 EX support?

The X299 UD4 EX supports up to 512GB of memory.

What type of memory does the X299 UD4 EX use?

It uses DDR4 UDIMM memory modules.

Compatible drive types: NVMe M.2 2280 (PCIe Gen 4) SSD, SATA 2.5" SSD, SATA M.2 2280 SSD.

Guaranteed-compatible SSD and hard-drive upgrades for the Gigabyte X299 UD4 EX, matched to its drive bays and slots.

Verified compatible

Guaranteed-compatible SSD and hard-drive upgrades for the Gigabyte X299 UD4 EX — matched to its drive bays and slots.

This option is out of stock.

Your slot's PCIe generation isn't published; the drive adjusts to it automatically.

This option is out of stock.

This option is out of stock.

This is a SATA (not NVMe) M.2 drive — confirm your M.2 slot supports SATA drives.

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Guaranteed-compatible SSD and hard-drive upgrades for the Gigabyte X299 UD4 EX, matched to its drive bays and slots.

Verified compatible

Guaranteed-compatible SSD and hard-drive upgrades for the Gigabyte X299 UD4 EX — matched to its drive bays and slots.

This option is out of stock.

Your slot's PCIe generation isn't published; the drive adjusts to it automatically.

This option is out of stock.

This option is out of stock.

This is a SATA (not NVMe) M.2 drive — confirm your M.2 slot supports SATA drives.