Yamaha TX7 OS v1.4 EPROM Firmware Upgrade KIT / New ROM Final Update Chip

Sequential Circuits Six-Trak OS v14 EPROM Firmware Upgrade KIT / New ROM Update

Korg Poly-800 OS 36 EPROM Firmware Upgrade KIT / Brand New ROM Final Update Chip

Korg DW-8000 OS 13 EPROM Firmware Upgrade KIT / New ROM Final Update Chip DW8000

Roland Alpha Juno-2 OS v2.5u EPROM Firmware Upgrade KIT / New ROM Update Chip

PAiA FatMan OS 1.9 EPROM Firmware Upgrade KIT / Brand New ROM Final Update Chip

Akai AX-60 OS version 1.2 EPROM Firmware Upgrade KIT / New ROM Update Chip

Yamaha DX7IID/FD OS v1.9 EPROM Firmware Upgrade KIT / New ROM Final Update Chip