The Dell part number 01242R is a RAID battery pack designed specifically for the PowerEdge 4400 server series. This OEM component provides backup power to the server’s RAID controller cache, protecting in‑flight data during unexpected power interruptions and ensuring seamless recovery when power is restored. Engineered to meet Dell’s original equipment standards, the battery pack fits directly into the designated slot on the PowerEdge 4400 chassis without the need for additional adapters or modifications. It is an essential replacement for maintaining data integrity and optimal RAID performance in mission‑critical environments where uptime and reliability are paramount.