Features: M2-/NGFF interface network card converted to PCI-E interface (for desktop computers)Simultaneous use of wifi and bluetooth-compatible on desktop computers Adapter card interface PCI-E (supports PCI-EX1, PCI-EX4, PCI-EX16); Note: laptop dismantling network card is not supported; Reminder: The laptop network card is not included. for Notebook, ThinkPad, Notebook Network Card and Intel3945 RTL8187B and 54MB Notebook Network Cards cannot be used. Please do not purchase; Transfer speed: depends on the network card and routers you use; Specifications: Material:Metal Size:Approx.12x8cm/4.72x3.15in Color:Black Interface: Minipci-e to PCI-E (support 1X 4X 8X 16X series) Package Includes: 1xMini PCI-Express to PCIE X1 Adapter (No Network Card) 2x6DB Antenna 1xBluetooth-compatible Data Cable note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.