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

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

Kawai K4 OS 1.4 EPROM Firmware Upgrade KIT / New ROM Final Update Chip

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

Korg Poly-800 EPROM OS 36 Upgrade and Chip Puller Tool

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

Yamaha DX100 OS version 1.1 EPROM Firmware Upgrade KIT / New ROM Chip Update