NETGEAR Beam 340U 4G LTE AirCard USB Mobile Broadband Modem GSM Unlocked DOES THIS DEVICE NEED A SIM CARD: Yes it does Being that this device is GSM Unlocked it will work on any active GSM Standard size SIM Card The sim card does come included you will need to contact your Network Provider to acquire your complimentary Sim card (Free from most Carriers with activating of an account) WHAT NETWORK FREQUENCIES ARE SUPPORTED BY THIS DEVICE: The Modem will support the following Frequency Bands: GPRS/EDGE: 850/900/1800/1900MHz; UMTS: 850/1900/2100MHz; LTE5: Bands 2, 4, 5, and 17. As well it has w/ 2x2 MIMO antenna ports. Please contact your network Provider (prior to purchase) and inquire if they support these bands in your area to ensure the device will work Properly WHAT CAN I EXPECT OUT OF THE BOX: In the box you can expect to find the device back door as well as a 2 foot USB extender and a manual WHAT DOES UNLOCKED REALLY MEAN: Unlocked devices are compatible with GSM carriers the kinds that Use SIM Cards for Service like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers) Unlocked Devices will not work with CDMA Carriers the kinds that dont use sim cards for service like Sprint, Verizon, Boost or Virgin (contact your network provider prior to purchasing for verification that they support GSM frequencies) !!!!!!!!!!!!!!!!!!!!!!!!!!!!!! WILL NOT WORK ON VERIZON OR SPRINT !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!