Itx htpc AO9 - really compact case for my 5700g 180w psu. It was a tight squeeze. Plenty of airflow. Enables mounting of an m.2 on rear of mobo with a heatsink
Mini Computer Case, Full Aluminum Light Delicate Thin Mini‑ITX HTPC Chassis, Free Placement Small DC‑ATX Power Supply Computer PC Case for Desktop Computer Home(Silver USB2.0) : Amazon.co.uk: Computers & Accessories
ITX Computer Case M06 Mini Desktop Case HTPC Industrial Control Case on OnBuy
Mini HTPC Computer Case, Aluminum DC-ATX Power Supply, for Mini-ITX 170x170mm Motherboard, Support 2x2.5inch/1x3.5inch Hard Disk for Desktop Computer(Black USB2.0): Amazon.co.uk: Computers & Accessories
Nanoxia NXPSMIB | Nanoxia Project S Mini HTPC Black
A09 Htpc Computer Case Mini Itx Gaming Pc Chassis Desktop Chassis Usb3.0 Computer Case Home Compute | Fruugo UK
A09 HTPC Computer Case Mini ITX Gaming PC Chassis Desktop Chassis USB2.05301 | eBay
Mini Computer Case, Aluminium HTPC Chassis with Full Openings, Mini ITX Desktop Computer Case, Silver: Amazon.co.uk: Computers & Accessories
Mini-ITX Case,Mini PC Computer Case Aluminum Alloy HTPC Case Surface Frosting Treatment,Designed for The ITX Motherboard (170 * 170MM),Configure USB2.0 * 2,Super-Thick Sheet, up to 3.5MM: Amazon.co.uk: Computers & Accessories
Mini ITX Computer Case, Mini PC Aluminum Alloy HTPC Case with 2 * USB3.0 Interface Support 3.5-inch hard disk for the ITX Motherboard (170 * 170MM)(Black): Amazon.co.uk: Computers & Accessories