What PSU do I need for an ITX PC case?

What PSU do I need for an ITX PC case?

How To Indicate A PSU Will Fit In A Mini ITX

7.3L mini-itx case (atx psu) by vieshu - Thingiverse

NZXT H1 Matte White Tempered Glass Mini ITX Case With 650w PSU and 120mm Liquid Cooler - CA-H16WR-W1

Morex 557 DC 60w PSU Mini-ITX PC case

NEW Mini ITX VESA Silent HTPC PC Case w/ 90W 12V DC-to-ATX Power Supply Board PS

Fully Modular Psu Support Mini Itx Case 110v 220v Gaming Pc Power Supply

Lazer3D LZX-8 mini-itx PC case - Tek Grey

E-W60 ITX CASE ALUMINIUM + PICO PSU - PART 2 ( 2/3 )

File:ITX Personal Computer Case and Flex-ATX PSU IMG 1646.JPG - Wikimedia Commons

Mini-Itx (3.3L) , Dual Layout Design Computer Case, Internal PSU Solution - China Computer Case and Mini Itx Case price