Purchase this "S" Chip Upgrade for the GTOCP3 Control Box at the time you order your MACH1GTO Mount! The chip will be factory installed allowing the user the convenience of using Astro-Physics new Command Center software. The "S" chip is required to run the APCC software.
Now includes an additional countersunk through-hole and slot. These changes provide greater mounting versatility for owners of small scopes and presents a new option for customers using the TeleVue 127mm. Can be used in the same manner as the 7" Sliding Bar (SB0800). It also provides the extra length needed to push the Traveler forward to counterbalance accessories when doing eyepiece projection.