Features: 1.100% Brand New And Super Fine Quality. 2.The Item Is A Terminal Expansion Adapter,Working Very Well For Prototyping Ar-Duino Nano Projects. 3.It Provided A Nice Platform For Wiring Circuits To Ar-Duino Nano. 4.It Can Connect A Large Number Of Digital Lines To Ar-Duino While Maintaining The Footprint Of The Original Nano 5.You Can Use This Adapter To Easily Hook Up Ar-Duino Nano To An Outside World Via Hook Up Wires,And It Can Be Used In Conjunction With Or In Place Of A Breadboard. 6.If You Have Any Problem,Please Contact Us As Soon As Possible. Specifications: Material: PCB Color: As Shown Size: As Shown (1inch=2.54cm) Package Included: 1Pc NANO 3.0 Controller Expansion Board. Note: 1.Due To The Different Monitor And Light Effect,The Actual Color Of The Item Might Be Slightly Different From The Color Which Is Showed On The Pictures. 2.Please Forgive 1 Cm/0.39-3 Cm/1.18 Measuring Deviation Due To Manual Measurement.