IBM 3.5-inch hard drive cage assembly, part number 00D8667, designed for System x3630 M4 1U rack servers. This internal drive cage supports up to four 3.5-inch SATA or SAS hard drives, enabling flexible storage configurations for enterprise workloads. The assembly mounts directly into the server chassis and connects via standard backplane connectors, maintaining hot-swap capability for drive replacement without downtime. Compatible exclusively with IBM System x3630 M4 platforms. Typical applications include database servers, file storage nodes, and general-purpose compute requiring high-capacity individual drives. Refurbished, tested and guaranteed. Available via quote.