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2.54mm Stackable Shield Header Zovfam 110 Pcs 6/8 / 10 Pins and Double Row 3 Pins for Arduino Prototype Shield: Amazon.com: Industrial & Scientific
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2.54mm Long 2x20P 40Pin Female Stacking Header Connector Gilded Double Row 12.2mm PC104 High Temperature Resistance - AliExpress
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