OCR 60Pcs 2.54mm 40Pin Breakaway PCB Board Male Pin Header Connector Singler Row for Arduino Shield Blue Black Green White Red Yellow 6Colors: Amazon.com: Industrial & Scientific
uxcell a15062900ux0315 40Pin 2 mm Single Row Straight Male Header Connector Strip 18 Pcs: Amazon.com: Industrial & Scientific
Amazon.com: DIKAVS Break Away Headers 2.54 mm Male Pin Header Connector - 40-pin Male Long Centered (Pack of 10) : Electronics