Amazon.com: 3pcs 2 x 20 Pins 2.54m Pitch Extra Tall Female Dual Row Short Pin Headers for Raspberry Pi : Industrial & Scientific
100pcs Male Header Pins, Lystaii Straight Single Row 40 Pin 0.1 Inch (2.54mm) Male Pin Header Connector PCB Board Pin Connector Electronic Component Raw Materials: Amazon.com: Industrial & Scientific
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
Amazon.com: uxcell 10 X Right Angle Female PCB Header 40 Way 2.54mm Pitch Connector Black : Appliances
uxcell s16031200am0392 2.54mm Right Angle 40-Pin Male Pin Header Connector 100mm Length (Pack of 50): Amazon.com: Industrial & Scientific
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