Spektrum SRXL2 DSMX Remote Serial Telemetry Receiver
Model: SPM9747

Surplus to my needs as I have gone to a new radio system. These have been on the shelf a while hence are listed as "Used"

I have 4 of these available. Price is for qty 1.

These retail for $74.95

Overview
The Spektrum SPM9747 DSMX SRXL2 Remote Receiver is used to provide additional path diversity using Spektrum’s patented MultiLink technology to avoid reflected signal fading and polarization blind spots at long range from the transmitter. The Spektrum SPM9747 SRXL2 is compatible with all receivers that utilize SRXL2 remote receivers (4-pin connector). It features an integrated antenna design inside the case to provide easy installation and worry free performance.

Features
SRXL2 Technology
Integrated antenna design for easy installation
DSMX and DSM2 compatible
Lightweight
22ms and 11ms Compatible
Includes 12 inch extension (other lengths are available)
SRXL2 Technology
SRXL2 is a powerful bi-directional communications protocol that improves the speed, security, and richness of data transfer between your radio system and compatible on-board devices such as flight controllers and Smart ESCs. You’ll also enjoy more responsive telemetry that can be customized precisely to your needs.

Integrated Antenna Design
The SPM9747 DSMX SRXL2 Remote Receiver features an integrated antenna design that allows for quick and easy installation and eliminates concern for damaging wire antennas.

Note: The SPM9747 DSMX SRXL2 Remote Receiver is not compatible with receivers that use 3-wire remote receivers. The main receiver unit must be compatible with a 4-wire SRXL2 remote receiver. The SPM9747 is only compatible with receivers that feature SRXL2 such as the AR637T and AR6610T receivers.