Your search for "Dell Stacking Cable" revealed the following:
Intel XDACBL1M 1m 10GB SFP+ Passive Direct Attach Copper Cable
SKU: NSB-7070
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Dell 407-BBZV 10GB BASE-LR 1310nm SMF JCFJD SFP+ Transceiver
SKU: NSN-8411
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Cisco C9300-24UB-E Catalyst 9300 24x 1GB UPoE RJ45 1x Exp Module Slot Switch
SKU: NSB-7145
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days