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
Amazon.com: Generic Female Header Right Angle 0.1" 6-pin for Arduino and LilyPad(pack of 10) : Electronics
3 Pieces of 0.1" 1X40 Machine Pin Male Headers(Swiss Machine Pin): Amazon.com: Industrial & Scientific
Amazon.com: MCIGICM 10pcs Male Header Pin, 40 Pin Header Strip (2.54 mm) for Arduino Connector : Electronics
Cylewet 30Pcs 40 pin Breakable Pin Header 2.54mm Single Row Male Header Connector Kit PCB Pin Strip for Arduino (Pack of 30) CYT1006 : Electronics
Frienda Break-Away 0.1 Inch 2 x 20-pin Strip Dual Male Header Double Row Straight Connector Pin Header Compatible with Raspberry Pi Zero GPIO (Pack of 20) : Electronics
Amazon.com: MCIGICM 10pcs Male Header Pin, 40 Pin Header Strip (2.54 mm) for Arduino Connector : Electronics
Amazon.com: uxcell a15062500ux0349 Right Angle Single Row 40-pin 2.54mm Male Header for Breadboard (Pack of 10) : Electronics
Amazon.com: uxcell 30Pcs 2.54mm Pitch 40-Pin 16mm Length Single Row Straight Connector Pin Header Strip for Prototype Shield : Electronics
DIKAVS Break Away Headers 2.54 mm Male Pin Header Connector - 40-pin Male Long Centered (Pack of 10) : Electronics
uxcell a15010500ux0918 2.54mm 2 x 20-pin Male Double Row Right Angle Pin Header Strip (Pack of 10): Amazon.com: Industrial & Scientific