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
Amazon.com: Cisco Catalyst 2960-24PC-S Ethernet Switch - 2 x SFP (Mini-GBIC) - 24 x 10/100Base-TX, 2 x (Renewed) : Electronics
Amazon.com: Cisco Catalyst WS-C2960S-24TS-L Ethernet Switch - 24 Port - 5 Slot - 24 x 10/100/1000Base-T - 4 x SFP (mini-GBIC), 1 x Stacking Module Slot (Certified Refurbished) : Electronics