Amazon.com: DB9 to RJ11 RJ12 Cable for Skywatcher EQ6 EQ5 HEQ5 EQMOD ASCOM PC to Connect The Synscan HC Upgrade (6ft/180cm, DB9 to RJ11/6p4c) : Electronics
Skywatcher SYNSCAN� GO-TO UPGRADE KIT FOR STANDARD EQ5 Mount #20108 (UK) BNIB 6970456093427 | eBay