Features 1、100% original BCM943228HMB chip, brand new and high quality. 2、Dual-frequency network card, you can enjoy the advantages of 2.4G network frequency and 5G network frequency. 3、Support 802.11A/B/G/ wireless protocol, maximum speed can up to 300Mbps. 4、Built-in Bluetooth 4.0, you can use Bluetooth to connect to a Bluetooth headset or transfer files. 5、For Lenovo special version, suitable for lenovo IBM, for ThinkPad, for U310 series notebook computers. Specification Features: 100% original BCM943228HMB chip, brand new and high quality. Dual-frequency network card, you can enjoy the advantages of 2.4G network frequency and 5G network frequency. Support 802.11A/B/G/ wireless protocol, maximum speed can up to 300Mbps. Built-in Bluetooth 4.0, you can use Bluetooth to connect to a Bluetooth headset or transfer files. For Lenovo special version, suitable for lenovo IBM, for ThinkPad, for U310 series notebook computers. Specifications: Material: PCB Size: Approx. 3*2.7*0.5cm/1.18*1.06*0.20inch Model: For Broadcom BCM943228HMB Version: Lenovo special edition, FRU:04W3763/04W3764/04W3834/04W3835 Wireless: 2.4G/300Mbps, 5G/300Mbps Wireless Protocol: 802.11A/B/G/ Bluetooth: 4.0 downward compatible with 3.0 Interface: Mini PCI-E System: For Win7/8/10 Compatible Laptop Model List: For V480V480SV480C/K29K49/510P/U310U410 For Think Pad X131e X140e For ThinkPad Twist S230u S430 S431 531 For Think Pad Edge E49 E130 E135 E145 For Think Pad edge e330 E335 For Thinkpad Edge E430 E430C E431 E435 E445 For ThinkPad Edge E530 E531 E535 E545 For ThinkPad T430 For Lenovo B430 B490 B590 Notebook Package list: 1 x BCM943228HMB Note: Only support for Lenovo computers, other computers do not support