1. Better cooling system, large aluminum housing, and passive cooling These devices feature a standard aluminum housing and passive cooling via a fan. The PCB is specially designed for passive cooling with cooling holes and a large aluminum housing, preventing reception failure due to heat above 1.2 GHz. 2. Utilizes R820T2 tuners, higherquality passive components, a USB line throttle to reduce USB noise, a significantly improved PCB design for lower internal interference and noise, various breakout pads, enhanced ESD protection, additional bypass capacitors and ferrite power chokes, an improved frontend tuning circuit, and a better LDO. 3. SMA Antenna Socket Universal dongles typically use less common MCX or PAL antenna connectors. SMA is more widely used, offering greater availability of adapters and antennas. It is also more durable and has lower RF insertion losses. 4. RF reception via direct sampling Capable of receiving signals from 100 kHz to 25 MHz using direct sampling. Simply connect an RF antenna to the SMA port and select the Q branch. A builtin 25 MHz lowpass filter is included, though additional RF filters may be needed for performance (e.g., to attenuate strong MW AM signals).