In stock. Ordered before 5pm, delivered the next business day. Gateways / Antennas Rfxcom - RFX433XL-USB receiver/transmitter (RTS compatible) Rfxcom 23104 CHF99.00 The RFXCOM 23104 interface lets you increase the RF reception and transmission capabilities of your home automation system. It connects to a USB port on your computer. Add to cart