Features: Upgraded wireless network card,designed for reliable and fast- internet access. This wifi card is made from high-quality PCB- material, high-speed signal transfer Perfect for iMac- users who need a stable and strong wireless connection for work or entertainment purposes. Whether you're streaming movies, downloading files, or working on a project, our wifi card ensures a seamless internet -experience on your laptop. The ozriginal wifi airport card to provide you with the best possible wireless performance-, backed by our expert knowledge and customer service. Specifications: Item：Wireless Card Material：PCB- Optional Types：BCD94331CD 2012Y BT4.0/BCM94360CD 2013-2014 BT4.0/ BCM943602CDP 2015-2017 BT4.2 For iMac- 21" A1418 A2116 27" A1419 A2115 Package Includes: 1PC Wireless Card note: Transition: 1cm=10mm=0.39inch Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!