Here is a list of the current PCBs:

Z80 backplane V1  https://www.retrobrewcomputers.org/forum/index.php?t=msg&th=568&goto=8397&#msg_8397
Z80 processor V3  https://www.retrobrewcomputers.org/forum/index.php?t=msg&th=568&goto=9143&#msg_9143
Z80 clock V2  https://www.retrobrewcomputers.org/forum/index.php?t=msg&th=568&goto=8899&#msg_8899
Z80 ROM V1  https://www.retrobrewcomputers.org/forum/index.php?t=msg&th=568&goto=8400&#msg_8400
Z80 RAM V3  https://www.retrobrewcomputers.org/forum/index.php?t=msg&th=568&goto=9142&#msg_9142
Z80 serial V2 (DIP-40)  https://www.retrobrewcomputers.org/forum/index.php?t=msg&th=568&goto=8982&#msg_8982
Z80 serial V3 (PLCC-44)  https://www.retrobrewcomputers.org/forum/index.php?t=msg&th=568&goto=9180&#msg_9180
Z80 DUART (PLCC-44)  https://www.retrobrewcomputers.org/forum/index.php?t=msg&th=568&goto=9181&#msg_9181
Z80 PPIDE V1  https://www.retrobrewcomputers.org/forum/index.php?t=msg&th=568&goto=8403&#msg_8403
Z80 FDC V1  https://www.retrobrewcomputers.org/forum/index.php?t=msg&th=568&goto=8785&#msg_8785
Z80 DMA V1  https://www.retrobrewcomputers.org/forum/index.php?t=msg&th=568&goto=8917&#msg_8917

Upcoming boards to be released:

Z80 prototype V2  https://www.retrobrewcomputers.org/forum/index.php?t=msg&th=568&goto=9076&#msg_9076
Z80 VDC V1  https://www.retrobrewcomputers.org/forum/index.php?t=msg&th=568&goto=9074&#msg_9074
Z80 KBDMSE V1  https://www.retrobrewcomputers.org/forum/index.php?t=msg&th=568&goto=9095&#msg_9095
Z80 extended backplane (in work)