Kaavie Flash Hot Shoe Sync Adapter with Extra PC Sync Port Dedicated for Nikon DSLR & Flashgun This adapter enables you to trigger flash attached on top of the adatper hot shoe as well as other flash connected via PC sync lead. It supports all function of Nikon i-TTL flashgun. It supports all standard hot shoe flashgun including Nikon, Canon, Sigma, Pentax, Olympus, Nissin... It has a PC sync socket so you can connect an additional studio light or flash via a PC sync cable. Not suitable for devices with sync voltage of more than 6 volts