Cheap And Discounts New A1707 Trackpad cable 821-01050-A For Macbook Pro Retina 15" A1707 Touchpad Flex Cable 821-01050 2016 2017 Years Wholesale. Buy Directly From Merchant XiaoBing Computer Accessories Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.