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Large Data Port (LDP): Located in the front, middle of the droid, at the base of the dome.
Utility Arms: There are 2 arms located in the upper middle of the body.
Front Vents: There are two vents on a standard R2-Unit.
Side Vents: There are two on a standard R2-Unit, one under each leg on the body.
Coin Slots: There is one strip on the standard R2-Unit in the front of the body.
Pocket Vents: There are two per standard R2-Unit, toward the bottom of the body in the front and back.
Coin Returns: There are three on a standard R2-Unit, one in the front, and two in the back toward the bottom of the main body.
Power Couplings: There are two per standard R2-Unit, one in the front center of the body at the bottom, and one in the back center at the bottom.
Octagonal Ports: There are two per standard R2-Unit, mounted toward the bottom of the body.
Skirt: The skirt is located on the base of the body.

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Leg Components

Shoulder Horseshoes: There are two per standard R-Series Unit, mounted on each leg.
Shoulder Hub: There are two per standard R-Series Unit, mounted in the top middle section of each leg.
Booster Covers: There are two per standard R-Series Unit, mounted on each leg.
Leg Struts: There are two per standard R-Series Unit, mounted on each leg.
Leg Body Hub: There are two, located between the body and the leg.

Main Leg

Shoulder Hydraulics: There are two per standard R-Series Unit, mounted inside the long opening in the shoulder horseshoes.
Shoulder Buttons: There are four per standard R-Series Unit, mounted inside the small square openings in the shoulder horseshoes.
Ankle Bracelet: There are two per standard R-Series Unit, mounted on the leg above the ankle
Outer Ankle Sides: There are two per standard R-Series Unit.
Ankle Details: There are four per standard R-Series Unit, mounted to the front and backs of the outer ankles.
Ankle Cylinder Wedges: There are two per standard R-Series Unit, which connect the ankle cylinders to the outer ankle sides.
Ankle Cylinders: There are four per standard R-Series Unit, which mount to the ankle.
Ankle Cylinder Holders: There are four per standard R-Series Unit, which attach to the lower portion of the ankle and cradle the ankle cylinder.
Under Shoulder Details: There are four per standard R-Series Unit, that are mounted into the recessed area on the undersides of the main leg.

Outer Feet

Outer Foot Shell: Shell is complete, well formed and contains the following additional items.
Foot Side Plate:
Half Moon Details: There are four per standard R-Series Unit, one on the outside face of each outer foot shell, and one per side of the center foot shell.
Foot Details: All feet have appropriate foot details.
Foot Strips: There are six per standard R-Series Unit, each foot shell will have a foot strip mounted from and back in the middle.

Battery Box

Battery Boxes: There are two per standard R-Series Unit, which fit into the insides of the outer feet.
Battery Box Harnesses: There are four per standard R-Series Unit, which mount to the front recess on the battery box.
Foot Hoses: There are four per standard R-Series Unit, which connect the battery boxes to the outer foot shells.
Knurled Hose Fittings: There are four per standard R-Series Unit, and are on both ends of each Foot Hose

Center Foot (Optional)

If a center foot is used, it must have all of the following:
Foot Strips the center foot shell will have a foot strip mounted front and back positioned in the middle of the shell.
Ankle Cylinders: There are two on the standard R-Series center ankle, one on each side.
Ankle Cylinder Holders: There are two on the standard R-Series Unit center ankle, which attach to the lower portion of the ankle and cradle the ankle cylinder.
Center Foot Shell: Shell is complete, well formed and contains the following additional items.
Center Foot Details: Feet have appropriate details.
Half Moon Details: One per side of the center foot shell.