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The Quantum Instruments Module for Nikon SB-900 & Nikon SB-910 is a connection cable for powering a Nikon SB-900 AF Speedlight flash from a QB1/1+ or QB1c battery pack. It is also compatible with the Nikon SB-910.
In the Box
Quantum Instruments Module for Nikon SB-900 & Nikon SB-910