Cel-Fi QUATRA 4000 is an Active DAS Hybrid that solves the problem of poor cellular coverage in middleprise buildings. Cel-Fi QUATRA 4000 delivers a cellular signal that is up to a 1000 times stronger, utilizing CAT 5e cabling for RF and Power over Ethernet. Cel-Fi QUATRA 4000 can be installed in just days, and at a price point that meets the middleprise budget. Cel-FI QUATRA 4000 is carrier grade, carrier approved and guaranteed network safe.