Check the listing for details. Raspberry Pi Stacking GPIO Header 2x20 40P 40-pin 2.54 Female Extra Long Pins US. Condition: New. Listed at 6.29 USD. Shop by Category Hardware CNC & 3D Printing Automation & Linear Motion Pneumatics Embedded Development Electronics Camera Mounts Tools Other Why Shop With Us Raspberry Pi Stacking GPIO Header 2x20 40P 40-pin 2.54 Female Extra Long Pins US Product Description 40 Pin female header, 2 rows of 20 pins each. 2.54mm / 0.1" spacing This header has extra long pins which is why it is called a stacking or stackable header - one common use is for creating a raspberry pi "hat", where the header is soldered to a board that connects to the male pins on the raspberry pi, and these pins then protrude enough for another female connector to "stack" on top. This listing is for a single header with free shipping. See our other listings for other quantities, including a low flat shipping rate for larger quantities. Related Items Details about Assortment A Imperial SAE Metal Threaded Heat Set Screw Inserts 3D Printing Kit Please consider taking advantage of our multi-item discount found at the top of the listing page; it allows us to combine shipping and pass on the savings to you. 10% off 3, 15% off 5 items. Applies to most of our items. FREE Shipping to the USA and APO Addresses --> © 2018 Albers LLC. All Rights Reserved.