The 6GT2091-7UH10 is a 1-meter DC power adapter cable that connects a SIMATIC RF reader or identification device to a standard USB-A port for 5V DC power. One end is a USB-A plug; the other end terminates in a 2.1×5.5mm DC barrel coupling (female). This is a power-only cable—two conductors, no data wires, no core insulation, not flame-retardant. It is 3mm in diameter at a weight of just 26 grams.

When should I use this cable versus a standard USB cable?

This cable is for power delivery only, not data communication. Use it when a SIMATIC RF device needs 5V DC from a USB power source—a USB charger, a panel-mount USB port, or a PC USB port used purely as a power supply—and the device has a 2.1×5.5mm barrel power input. A standard USB-A-to-USB-B or USB-A-to-USB-C cable carries both power and data; this cable carries power exclusively through the DC barrel connector. It is the correct choice when the RF device documentation specifies a 5V DC barrel-jack power input and a USB source is the most convenient power supply.

What SIMATIC RF devices does this cable power?

The 6GT2091-7UH10 is listed in the SIMATIC RF accessories catalog for powering compact RFID readers and identification devices that accept a 2.1×5.5mm barrel connector at 5V DC. It is typically used with SIMATIC RF200, RF300, and RF600 series readers in test setups, commissioning scenarios, or installations where a dedicated 24V DC power supply is not available at the reader location. For production deployments where reliability requirements are higher, Siemens recommends powering RF readers from a 24V DC industrial power supply rather than a USB port—the USB power source is intended for configuration, commissioning, and light-duty operation.