400-APTU

The Dell 400-APTU is a hybrid hard drive designed to balance speed and storage capacity. It combines a high-speed 15,000 RPM SAS hard disk with solid-state caching to improve performance for frequently accessed data.

Often found in enterprise servers and storage arrays, this drive suits environments where both fast read/write access and reliable large storage space are critical. IT administrators and data center operators typically use it to optimize workloads that benefit from quick data retrieval without entirely relying on costly pure SSD solutions.

Key Features

• High rotational speed reduces latency and improves access times
• Hybrid design allows quicker performance for hot data while keeping large capacity
• Supports 12Gb/s SAS for enhanced throughput in demanding systems
• Hot-pluggable 2.5-inch form factor eases maintenance and upgrades
• 512-byte sector size compatible with a variety of enterprise OS and applications

This hard drive is typically deployed in mid to high-tier Dell server racks where balancing cost and speed is essential. Its hybrid nature helps maintain system responsiveness without sacrificing bulk storage.

It plays a key role in data centers managing mixed workloads, providing a practical compromise between traditional HDDs and expensive all-flash arrays.