The NZXT H1 is a Mini-ITX case and as such will only take motherboards of that specification. This can be confusing if you
NZXT Debuts H1 Mini-ITX Case for Big Gaming Rigs & NZXT BLD H1 Mini PC
H1 Mini PC Plus, Prebuilt Gaming PC
NZXT H1 Review - Assembly & Finished Looks
NZXT H1 Mini Plus Review
NZXT H1 SFF Mini ITX Mini Tower Case with PSU, AIO, Fan Controller and PCIE Extender Black CS-H11BB-US - Best Buy
NZXT H1 Review Mini-ITX for the masses - GameRevolution
NZXT H1 SFF Mini ITX Mini Tower Case with PSU, AIO, Fan Controller and PCIE Extender Black CS-H11BB-US - Best Buy
Buy NZXT H1 Mini Version 2 ITX SFF Case with PSU, AIO and Riser Card – Matte Black CS-H11BB-IN - PrimeABGB
NZXT H1 v2 Mini-ITX Case with AIO & PSU - White Tempered Glass
NZXT H1 Review - A Closer Look - Inside
H1, Compact Mini ITX Gaming PC Case, Gaming PCs