This is the MFJ-1117 Multiple DC Power Outlet. It lets you power four HF/VHF radios -- two at 35 Amps each and two at 35 Amps combined -- from you transceivers main 12 VDC supply.
THE MFJ-1117 has four pairs of super heavy duty 35 amp 5-way binding posts connect your transceivers. Each pair is fused and RF bypassed. Handles 35 Amps total.
The MFJ-1117 Multiple DC Power Outlet has six feet super heavy duty eight gauge color-coded cable with ring tongue terminals. Binding posts are spaced for standard dual banana plugs. Heavy Duty aluminum construction.