Fits Sunpak 511, 522, 544 and likely other Sunpak flash units.
But, it will NOT fit the Sunpak 383 or 333. The plastic around the plug end is too large to fit into the tight geometry around the sync port.
For a cord for the Sunpak 383 ⁄ 333 see FlashZebra.com Item #0016.
Price: $15.00 + shipping