Sequential Circuits Prophet 2000 ROM 4.3B Firmware Upgrade Chip / New EPROM

Sequential Circuits Six-Trak v14 EPROM Firmware Tauntek and Chip Puller Tool

Oberheim Cyclone OS version 1.2 EPROM Firmware Upgrade KIT / ROM Update Chip

SCI Prophet 2000 / 2002 OS 4.3B EPROM

Akai S3000XL Sampler OS v2.0 EPROM Firmware Upgrade KIT / New ROM Update Chip

AKAI MPC 3000 Vailixi V3.50 EPROM OS Firmware Upgrade and Chip Puller Tool

Casio RZ-1 OS v2.0u EPROM Firmware Upgrade KIT / ROM Update Chip RZ1

Ensoniq ESQ-1 Firmware Upgrade EPROM Chips plus Chip Puller Tool - v3.5