 Hey lady, what is this? Hey, I am back with my Tester Brains boards, what I used to program boards that we put into the shop. So in this case it's an ITSI RP2040. And what's neat about this is it's an RP2040 programming another RP2040 using USB mass storage. So it's got the bitbang, the USB host in Arduino that is taking a file from the SD card and programming this RP2040 in like two or three seconds using USB host. And this is neat because originally we used the Tinsi 3.6 which has USB host built in. But unfortunately it's totally unavailable right now and we need to make more RP2040 boards. So while we wait for more of these to get manufactured at PJRC, we've designed this board which is kind of drop-in compatible. Like I said uses the Pico which is easily available and Tini USB to successfully programming our RP2040 boards.