For Sale 2 X Eproms with Latest Firmware Version 2.0 for Roland S550 Features: Bug fixes, improved midi communication and general stability Installation: consist of two eproms IC 3 (A )and IC 6 (B) LOWER SHIPPING COSTS FOR MULTIPLE PURCHASES When buying more items, do NOT use the eBay checkout, it could calculate the shipping costs too high. When you are finished shopping, use eBay's "ask the seller for total" function. More items every week! Mark as Favorite Seller to receive regular updates.