Amazon.com: Stacking Cable for Cisco CAB-STK-E-0.5M FlexStack Cable, Compatible with Catalyst 2960-X and 2960-XR, Stack up to 8 switches, 0.5-m : Electronics
CAB-STK-E-1M - Cisco FlexStack stacking cable 1 Meter for C2960S-STACK module | eBay
FlexStack Module | Cisco 2960S Series | C2960S-STACK | Fast Shipping
Catalyst 2960-X and 2960-XR Switch Hardware Installation Guide - Switch Installation [Cisco Catalyst 2960-XR Series Switches] - Cisco
Used Cisco | CAB-STK-E-0.5M
CISCO (CAB STK E 1M=) Cisco Bladeswitch 1M stack cable