The MemCard Pro 2 (PlayStation 1/2/3) and GameCube editions are now available to order at most sellers; Some have units in-stock and other sellers are opening pre-orders, which should ship within a few weeks. When setting up these cards for the first time, make sure to manually install the latest firmware, both because some awesome new features have recently been added, but also to make sure the wireless update server is sync’d to the latest:
MemCard Pro2
US Seller 1: https://retrorgb.link/memcardpro2
US Seller 2: https://retrorgb.link/memcardpro2cmg
UK Seller: https://retrorgb.link/ps2memcard
MemCard Pro GC
US Seller 1: https://retrorgb.link/memcardprogcsag
US Seller 2: https://retrorgb.link/memcardprogc
UK Seller: https://retrorgb.link/memcardpro
If you’d like more info on these awesome memory cards, check out some videos from Tito from Macho Nacho Productions. As a note, these videos were made before the latest ability to launch PS2 games or use wireless controllers on a PS1, so check out those posts for updates!
