Digital Foundry on Twitter: "It's been a while since I posted one of these - but this one's a beauty. The original, full back-compat PlayStation 3 CECHA0 motherboard. Never released in the
Amazon.com: Brook Zero- Pi Fighting Board Easy Version - Compatible with Switch/ PS3/ PS2/ PS/ PC(X-Input)/ Retro Gaming Emulator to Arcade Stick Screw Terminal Header Included : Video Games
NPTX-001 PlayStation 3 Motherboard NPX001
The PlayStation Supercomputer - DCD
PlayStation 3 Control Board Replacement - iFixit Repair Guide
For anyone curious here is both variants of PS2 backwards compatible motherboards. Top is full BC, bottom is hybrid BC : r/PS3
Motherboard Comparison: American vs. Euro PS3 | WIRED
Sony Playstation 3 PS3 Motherboard VER-001 with Logic Board BMD-031 CECHP01 RLOD | eBay