Check the listing for details. 2X Raspberry Pi Stacking GPIO Header 2x20 40P 40-pin 2.54 Female Extra Long Pins. Condition: New. Listed at 9.65 USD. Shop by Category Hardware CNC & 3D Printing Automation & Linear Motion Pneumatics Embedded Development Electronics Camera Mounts Tools Other Why Shop With Us 2X Raspberry Pi Stacking GPIO Header 2x20 40P 40-pin 2.54 Female Extra Long Pins Product Description 2-PACK 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 TWO headers, with free shipping. See our other listings for other quantities, including a low flat shipping rate for larger quantities. FREE Shipping to the USA + APO addresses 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.