The function of the adapter card is to convert the built-in Mini PCI-E wireless network card into a PCI-E interface wireless network card available for desktop computers! (The antenna is not removable) The PCI-E Mini Card Passive Adapter is designed for wireless applications on desktop computers that convert the Mini Card into a standard PCI Express 1 x slot Or insert a PCI-E type mini card into this adapter, and then insert the PCI-E 1x connector. feature: Used for mini pci-e wireless network card and other devices, desktop applications. You can use a desktop with a pci-e 1X interface. Support U.FL/IPX to RP-SMA pigtail WiFi RF cable adapter. Strong compatibility, support 98/2000/XP/Server 2003/XP/Vista/win7, Linux and other computer operating systems. Not supported: Intel 39xx, Intel 62xx series, Broadcom series. The network card of Lenovo computer does not support specification: Item type: Wifi Mini PCI-E to PCI-E1X adapter converter Material: plastic, metal Color: green, white Antenna length: 11 cm/4.33 inches (approximately) The package includes: 1*Network adapter card