The QuickCarrier USB-D USB cellular modems are a part of Multi-Tech"s comprehensive line of modems for M2M (machine-to-machine) communications. All QuickCarrier USB modems are fully certified and carrier approved, so you can get to market extremely fast, allowing customers to start obtaining the benefits of M2M. Designed specifically for M2M applications, they provide a long, stable lifecycle and are durable, reliable and easy to deploy.