The TR-SL Series is a smaller, powerful client adapter (CPE) that features NAT routing, QoS, encryption, and other functions similar to Tranzeo's TR-CPQ Series. It is available in 2.4GHz, 5.8GHz, and 900MHz frequencies and has a low power draw of only 4 watts, making it suitable for solar and alternative power sources. The TR-SL9 model provides a high gain output of +29dBm and adjustable power levels for different installation needs.