How much RAM does the ASRock X99 OC Formula/3.1 support?

The X99 OC Formula/3.1 supports up to 256GB of memory across 8 slot(s), up to 32GB per slot.

What type of memory does the X99 OC Formula/3.1 use?

It uses DDR4 UDIMM memory modules.

Compatible drive types: SATA 2.5" SSD, SATA M.2 2280 SSD.

Guaranteed-compatible DDR4 UDIMM upgrades for the ASRock X99 OC Formula/3.1, in matched-kit options that fill your slots.

Verified compatible

Guaranteed-compatible SSD and hard-drive upgrades for the ASRock X99 OC Formula/3.1 — matched to its drive bays and slots.

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.
Compatibility is based on published specifications, not yet confirmed against a manufacturer tool.

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Guaranteed-compatible DDR4 UDIMM upgrades for the ASRock X99 OC Formula/3.1, in matched-kit options that fill your slots.

Verified compatible

Guaranteed-compatible SSD and hard-drive upgrades for the ASRock X99 OC Formula/3.1 — matched to its drive bays and slots.

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.
Compatibility is based on published specifications, not yet confirmed against a manufacturer tool.

Rated speed	3200 MT/s

ECC	supported

Good to know

Maximum capacity per slot is inferred from total capacity ÷ number of slots.
Compatibility is based on published specifications, not yet confirmed against a manufacturer tool.