I have three (3) very clean, lightly used, Tripp Lite Isobar 4-Outlet Ultra Surge Suppressors. (Model: ISOBAR4ULTRA). These are extra heavy-duty diagnostic surge protectors featuring isolated filter banks and a rugged metal housing. Key Features: A Separate internal filter bank block interference (RFI/EMI) between your connected electronics. Military Grade Surge Protection Rating: Provides high-grade energy absorption rated at 3,330 Joules!!! Diagnostic LEDs with Built-in indicator lights confirm power status (Protection Present), wiring faults (Fault), and line correctness.

All ports tested good/operational.

These sell for well over $100 new!!

This is for three (3) four outlet surge protectors.

See my other listings for a single 4-port or 6-port surge protectors, which also available.

See my response and thanks for looking....