Amazon.com: Chanzon Round Pin Header Strip for Arduino Gpio 4 pin x 50pcs Male Headers Pins Straight Single Row Gold Plated Pitch 2.54mm 0.1 inch Breakaway for PCB Connector Raspberry pi Machine
Amazon.com: YWBL-WH Female Pin Header Connector 2 × 20 Pins 2.54MM Pitch Female Dual Row Short Pin Headers for Raspberry Pi 5 Pcs, Electronic Components : Electronics
50pcs Pogo Pin Header 1x4P 2.54 mm Pitch 4 Position 2.5/3/4/4.5/7/9.0 mm Height PCB Vertical Gold 1u Pogo Pin Female Contact Pad|Connectors| - AliExpress