On sale! (normally $329) The DAN Cases A4-SFX V4.1 ITX Case Black is designed with the goal of creating the smallest case possible while still using high-end standardised components. It features an ultra compact design of 7.2L, brushed exterior, supports m-ITX motherboards, can fit 1 x 92mm fan (up to 25mm) in place of the drive bay, and 1 x 92mm fan (up to 15mm) under the motherboard, water cooling support at the bottom (up to 92mm), 3 x 2.5" drive bays, supports SFX and SFX-L power supplies, supports a dual slot graphics card of up to 295mm in length.
Available in white and black.
Review by Optimum Tech - https://www.youtube.com/watch?v=AENfa_nNvuI
Tough case to recommend these days with the GPUs getting thicker and the itx market growing more competitive. Especially when the FormD t1 and meshilicious exist and the ncase m1 is getting a successor - yes these are a bit larger but they are not so painfully restricted by hardware compatibility.