Dell 3TB 3.5" 7200RPM SAS 6Gb/s HDD

The Dell 91K8T is a 3TB internal hard drive that fits a 3.5-inch bay, spins at 7200 revolutions per minute, and communicates through a 6 Gb/s SAS link. It arrives in a hot-swap carrier that matches Dell server trays, so an administrator can slide it in or out of a compatible rack or tower chassis without powering the system down.

Because this model uses a Serial Attached SCSI interface, it is designed for enterprise servers rather than consumer desktops. The drive delivers steady throughput for database work, virtual machine storage, or large file repositories where predictable access times matter. In a growing environment, it can expand total capacity; in a maintenance window, it can replace a failing unit while the remaining drives keep the workload online.

IT teams who manage Dell PowerEdge or similar platforms will appreciate that the firmware and tray are already matched to typical data-center standards, cutting the steps needed to bring a replacement online. Small businesses running on-premises file servers can add the 91K8T to extend storage without changing the existing infrastructure, and branch offices can keep one on the shelf as a ready spare for quick recovery.

Highlights:

• 3 TB of raw capacity for databases, virtual machines, or file shares
• 7200 RPM rotation that balances speed with energy use
• 6 Gb/s SAS interface for enterprise backplanes and RAID controllers
• 3.5-inch form factor that fits standard server bays
• Hot-swap tray included to enable tool-free replacement while the server stays online