This is a complete Quad-Band GSM/GPRS module in a SMT type - designed with a very powerful single-chip processor, allowing you to benefit from small dimensions and cost-effective solutions. Featuring an industry-standard interface, the SIM900 delivers GSM/GPRS 850/900/1800/1900MHz performance for voice, SMS, Data, and Fax in a small form factor and with low power consumption. With a tiny configuration of 24mm x 24mm x3 mm, SIM900 can fit almost all the space requirements in your M2M or IoT (Internet of Things) applications, especially for slim and compact demands of design!

All the modules are 100% tested and ready to use! No more fake and grey market modules!