PlayStation Debugging Station DTL-H1102
Since nothing has yet to be posted in the PS1 prefix and I'm sure emulator guides will come end up filling it I'm going to show off something I own.
Sometime ago I got my hands on a PlayStation Development Kit they're pretty rare because I for whatever reason have slowly collected pretty rare consoles over time.
This Dev kit is listed as one of the things you cannot have here are the details:
It's not a casemod; Sony made these
They're blue to distinguish themselves from ordinary PS1s. These are special developers' units made for testing games out
Why do you want a blue Playstation? Because they'll take burned CDs
There is no region locking on these units they will accept all formats.
Some photos of my one
Related to this I also have the Playstation Video CD Console it's very rare and looks like below but that one is boxed up but here's a photo of how it looks.