Specification Brand : Tangxi BulletPoint : Note: this wireless card could not work on IBM/Lenovo/Thinkpad and HP version laptop BulletPoint1 : LTE/HSPA+ Support. BulletPoint2 : Open SIM. BulletPoint3 : Supports EMEA countries, Australia and New Zealand. BulletPoint4 : Delivers a true broadband experience to any device, anytime, anywhere. BulletPoint5 : A WAN-ready option that provides high speed on the internet access. Color : 8125BG-PCI EX1 CompatibleDevices : Laptop DataLinkProtocol : Ethernet DataTransferRate : 42 megabits_per_second ExternallyAssignedProductIdentifier1 : 0748904637150 ExternallyAssignedProductIdentifier2 : 748904637150 HardwareInterface : radio_frequency HardwareInterface1 : pci_x_1 HardwareInterface2 : pci_x_4 HardwareInterface3 : pci_x_8 HardwareInterface4 : pci_x_16 ItemName : Network Card, EM7345 4G LTE WWAN Card Module for X250 X1C W550 T450 X240 T440 Support for LTE/HSPA& /EMEA Countries ItemPackageDimensions_Height : 7 centimeters ItemPackageDimensions_Length : 0.2 centimeters ItemPackageDimensions_Width : 5.5 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : computer-internal-network-cards Manufacturer : PUSOKEI ModelNumber : Tangxi4pwcy9fmqs PartNumber : Tangxi4pwcy9fmqs ProductDescription : Performance Specifications: Supported Voltage range: 3.135 V to 3.6 V Operating Voltage: 3.3V VBAT voltage range: 3.135V to 4.4V Average Standby Power (RF radio off) < 10mW Selective Suspend support (connected to network) <4mW Data Transfer Peak current is 2.5 A HSPA+ data rates downlink up to 42 Mbps and Uplink up to 5.7Mbps For 8 For L440 For L540 For T431s, T440, T440p, T440s T450 For T540p For W540 For X1 Carbon (Machine types: 20A7, 20A8) For X240 X240S X250 X250S For Helix 2nd Gen (Machine types: 20CG, 20CH) For X1 Carbon (Machine types: 20A7, 20A8, 20BS, 20BT) For L440 For L540 For T431s, T440, T440p, T440s, T450, T450s For T540p For W540 For T550 For W550s For X240, X250 Supported Systems: L440, L540, L450 T431s, T440, T440p, T440s, T540p, T550 W540, W541, W550s X1 Carbon (Machine types: 20A7, 20A8, 20BS, 20BT) X240, X250