Amazon.com : UTEBIT 323 RC2 Quick Release Plate Compatible with Manfrotto 200PL-14 QR Plates Adapter with Rapid Connect Clamp and 1/4'' to 3/8'' Screw for DSLR Camera Tripod Ball Head : Electronics
Amazon.com : Manfrotto 323 RC2 Rapid Connect Adapter with 200PL-14 Quick Release Plate - Replaces 3299-Black & Quick Release Plate with Special Adapter (200PL) : Electronics