Feature:1. [LTE FDD] Supports LTE FDD, LTE FDD data download rate is 300Mbps, data upload rate is 50Mbps.2. [UMTS] UMTS data download rate is 384 kbps, data download rate is 384 kbps, and has high work efficiency.3. [DC HSDPA+] DC HSDPA+ has a data download rate of 42Mbps and a data download rate of 5.76Mbps, which has excellent performance.4. [Plug and Play] Plug and play, only need to connect to the interface in the computer, no driver is required.5. [Suitable] Suitable for Thinkpad X280 T480 T480s T580 P52s L480 L580 T490 T590 P53s T490s X390 L490 L590 P43s, etc.Specification:Item Type: Network CardMaterial: PCBWorking Frequency:LTE FDD Frequency Bands: 1, 3, 7, 8, 20, 28, 32WCDMA HSPA+ Frequency Band: I, VIIIGPS GLONASS: Not SupportedLTE FDD Data Download Rate: 300Mbps, Data Upload Rate: 50MbpsUMTS Data Download Rate: 384kbps, Data Download Rate: 384kbpsDC HSDPA+ Data Download Rate: 42Mbps, Data Download Rate: 5.76MbpsVoltage: DC 3.135V to 4.4VNormal Working Temperature: -10 to +55Extended Working Temperature: -30 to +65Storage Temperature: 40 to +85Interface: M 2 Key BSuitable: For ThinkPad X280 (Type 20KF, 20KE)For ThinkPad T480 (Type 20L5, 20L6)For ThinkPad T480s(type 20L7, 20L8)For ThinkPad T580(Type 20L9, 20LA)For ThinkPad P52s(Type 20LB, 20LC)For ThinkPad X380 Yoga LaptopFor ThinkPad L480(type 20LS, 20LT)For ThinkPad L580 (type 20LW, 20LX)For ThinkPad T490(Type 20N2, 20N3)For ThinkPad T590 (Type 20N4, 20N5)For ThinkPad P53s(Type 20N6, 20N7)For ThinkPad X390 YogaFor ThinkPad T490s(Type 20NX, 20NY)For ThinkPad X390(Type 20Q0, 20Q1)For ThinkPad L490(type 20Q5, 20Q6)For ThinkPad L590 (type 20Q7, 20Q8)For ThinkPad P43s(Type 20RH, 20RJ).Package List:1 xNetwork Card