Please read the profile before purchasing. The SIGMA USB DOCK UD-01 is the perfect accessory for adjusting NIKON lenses. - Model Name: USB DOCK UD-01 - Brand: SIGMA - Compatible Models: NIKON - Included Items: USB cable, warranty - Features: Lens adjustment dock It was used once and is no longer needed because the lens itself was sold (according to a family member). Thank you for viewing. Returns and exchanges are not accepted to prevent swapping, etc.