It is recommended to power the board via the jack connection with a regulated 5 VDC @ 4000 mA power supply provided in the box.

There is an on-board voltage regulator for higher voltages that protect the Braccio shield. NOTE: The protection doesn’t work for the Arduino Yun if you put the bridge between Vin and 5V on the Arm Robot Shield V1 (greater version of are called Braccio shield and has a power switch on the top of the shield)

• Plastic Parts x 21
• Screws x 63
• Flat Washer x 16
• Hexagon Nut x 7
• Springs x 2
• Servo Motors: 2 x SR 311, 4 x SR 431
• Arduino compatible Shield x 1 
• Power Supply 5V, 4A x 1
• Phillips Screwdriver x 1
• Spiral Cable Protection Wrap x 1

Fully assembled Braccio Kit: 

Weight	792 g
Maximum operating distance range	80 cm
Maximum Height	52 cm
Base Width	14 cm
Gripper Width	90 mm
Cable length	40 cm
Load Capacity	Maximum weight at 32 cm operating distance: 150 g
	Maximum weight at the minimal Braccio configuration: 400g

Braccio Shield: The maximum length and width of the Braccio Shield PCB are 2.7 and 2.1 inches respectively, with the power jack extending beyond the former dimension. Four screw holes allow the board to be attached to a surface or case. Note that the distance between digital pins 7 and 8 is 160 mil (0.16"), not an even multiple of the 100 mil spacing of the other pins.

SpringRC SR431 - Dual Output Servo
Control Signal	PWM Analog
Torque	@ 4.8V: 169.5 oz-in (12.2 kg-cm) @ 6.0V: 201.4 oz-in (14.5 kg-cm)
Weight	2.19 oz (62.0 g)
Dimentions	1.65×0.81×1.56 in (42.0×20.5×39.5 mm)
Speed	@ 4.8V: 0.20 sec/60° @ 6.0V: 0.18 sec/60°
Rotation Support	Dual Bearings
Gear Material	Metal
Rotation Range	180°
Connector Type	J (aka Futaba)

SpringRC SR311
Control Signal	PWM Analog
Torque	@ 4.8V: 43.13 oz-in (3.1 kg-cm) @ 6.0V: 52.86 oz-in (3.8 kg-cm)
Weight	0.95 oz (27.0 g)
Dimentions	1.23×0.65×1.13 in (31.3×16.5×28.6 mm)
Speed	@ 4.8V: 0.14 sec/60° @ 6.0V: 0.12 sec/60°
Rotation Support	Dual Bearings
Gear Material	Metal
Rotation Range	180°
Connector Type	J (aka Futaba)