Here we have a Versa64cart complete but without case or EPROM.
The PCB has been manufactured with the ENIG (gold) process.

Versa64Cart is designed to be a modern easy-to-use cartridge development board for Commodore 64 and Commodore 128 hobbyists and hackers. The versatile design of the PCB allows for flexible implementation of various cartridge types. Whether it’s a simple cartridge backup of an 8k game or a switchable multi-program diagnostic cartridge, Versa64Cart has you covered.

Supported EPROMS are: 27C64 (8k), 27C128 (16k), 27C256 (32k), 27C512 (64k).

All docs and info are available on github: https://github.com/bwack/Versa64Cart

Briefly, SW1 (3-5) configures which bank to boot and the other jumpers select the kind of ROM and size.
The PCB's will be supplied with switching set to boot the first 8k bank as a deadtest type cart.

UK postage included.
Overseas about £8 extra.

Cheers.