Product Specification

General

Brand : EVGA

Model : 121-SX-E296-KR

Socket Type : LGA 2066

Chipset : Intel X299

Form Factor : ATX

Memory Support

Memory Type : DDR4

RAM Quantity : 4 (Quad Channel)

Max Memory Support : 64 GB

Memory Pin : 288-Pin

Storage Expansion

SATA : 6 x SATA 6.0 Gb/s

M.2 : 1 x 2242/2260/2280 M-key, 1 x 2230 E-key

RAID Support : No

I/O Slots

USB : 2 x USB 2.0, 1 x USB 3.2 Gen 1

PCIe Slots : 2 x PCIe x16, 1 x PCIe x4

Ethernet : 1 x 1 Gb/s

Wireless

Wireless Networking : None

EVGA X299 MICRO ATX 2, LGA 2066, Intel X299, SATA 6Gb/s, USB 3.1 Gen2, USB 3.1 Gen1, mATX, Intel Motherboard 121-SX-E296-KR

(18 Total Review)

Product Features

Supports Intel Core X-Series cascade lake-X and Skylake-X processors for 2066 socket
Matx form Factor + metal-reinforced PCIe and DIMM slots
32GB DIMM support - Quad-Channel DDR4 up to 128GB 4000MHz+ cascade lake-X/Skylake-X
New EVGA GUI BIOS features in-bios stress test and OC robot to auto-overclock your CPU and set per Core Clock speeds and voltages
Highly-efficient 14 Phase digital VRM with actively-cooled VRM heatsink.4 USB 2. 0 Ports (2 internal headers), 8 USB 3. 1 Gen1 Ports (6 rear panel, 2 from 1 internal header), 2 USB 3. 1 Gen2 Ports (Type-A).6 SATA 6 Gb/s ports, 1 M. 2 Key-M 80mm (up to 32Gbps), 1 M. 2 Key-E 32mm. 100% Solid State Capacitors, 150% Increased Socket Gold Content.New integrated EVGA Wi-Fi/BT module + Flash BIOS without a CPU.Get grip game + EVGA vehicle skin w/ Purchase, redeemed at EVGA website, while supplies last

Add Product to List

Amazon

Out of Stock · Last Checked At: Oct 30, 2026

View on Amazon

As an Amazon Associate, PC Builder earns from qualifying purchases. Prices and availability are as of the date shown and may change. Affiliate Disclosure