Nikon AS-10 Multi-Flash Adapter, The AS-10 connects to many Speedlites(SB-22S, SB-16B, SB-28 & SB-28DX, SB-50DX, SB-27, etc.) and can give full TTL flash control to multiple flash units simultaneously. SC-18 or SC-19 Multi-Flash Sync Cords are required.
