TracVision HD7/HD11 SWM Expander Kit - 16 TunerIf you wish to support more than 8 tuners (use of up to 16) or connect more than 8 SWM-compatible receivers or 4 DVRs (more than 8 tuners total) for DIRECTV HD service, then you need to purchse KVH's 16-tuner SWM Expander Kit.Compatible Devices: