What is the SRAM Power Link 9-Speed Card of 4 used for?

The SRAM Power Link is the tool-free master link for 9-speed chains, letting you open and close the chain quickly without a chain press or replacement pin. Thread both ends of the chain through the link, align the plates, and pedal forward under light load to lock it in place. The secure connection handles full drivetrain load without play or flex at the link joint. This card of 4 gives you four links per purchase — enough for multiple chain installations or to keep spares in your toolbox and saddlebag for roadside fixes.

Compatible with all SRAM 9-speed chains including the PC-971 and PC-951, as well as other 9-speed chains that accept a standard master link format. Removal requires chain link pliers to safely disengage the locking tabs. SRAM recommends replacing the Power Link each time the chain is removed for the most reliable long-term connection. If you are maintaining a 9-speed drivetrain and go through chains regularly, this card keeps you stocked without ordering singles each time.