
Intel Core i9-10900X
$444–$491
LGA2066 platform match
Mini‑ITX X299 board (2017) for Intel Core X‑Series with quad‑channel SO‑DIMM and triple M.2—designed to bring HEDT features to small‑form‑factor builds.
ASRock’s X299E-ITX/ac arrived in October 2017 as a Mini‑ITX board for Intel’s Core X‑Series (Skylake‑X/Kaby Lake‑X) on the X299/LGA2066 platform; it was previewed at Computex 2017 and became available on October 19, 2017.SourceASRock
Positioned as a high_end HEDT board in a tiny footprint, it exists to bring LGA2066 capability to small‑form‑factor builds. It suits ITX rigs needing quad‑channel memory and multiple NVMe drives: four DDR4 SO‑DIMM slots (up to 64 GB), three PCIe 3.0 x4 M.2, Intel 802.11ac Wi‑Fi, dual Intel GbE, USB 3.1 Gen2 Type‑A/C, plus one PCIe 3.0 x16 for a full‑size GPU. Unique note: it’s the only Mini‑ITX X299/LGA2066 motherboard released.SourceASRockSourceASRock
Compatible options ranked for this part's performance class.
Compatible options ranked for this part's performance class.

$118–$130
DDR4-4000 memory match
$118–$130
DDR4-4400 memory match
$252–$278
DDR4-3600 memory match
$532–$588
DDR4-3600 memory match
$511–$565
DDR4-3600 memory match
$309–$342
DDR4-3600 memory match
$256–$283
DDR4-3200 memory match
$513–$567
DDR4-3200 memory match
$128–$142
DDR4-3200 memory matchCompatible options ranked for this part's performance class.

$212–$234
ATX motherboard fit
$114–$126
ATX motherboard fit
$123–$136
ATX motherboard fit
$199–$220
ATX motherboard fit
$256–$283
ATX motherboard fit
$237–$262
ATX, mATX, Mini-ITX motherboard fit
$142–$157
ATX motherboard fit
$114–$126
ATX motherboard fit
$296–$327
ATX motherboard fit
$95–$105
ATX, mATX, Mini-ITX motherboard fit
$165–$183
ATX motherboard fit
$147–$163
ATX motherboard fitCompatible options ranked for this part's performance class.

$201–$223
750W capacity for headroom
$133–$147
650W capacity for headroom
$133–$147
600W capacity for headroom
$119–$131
750W capacity for headroom
$138–$153
700W capacity for headroom
$134–$148
500W capacity for headroom