23 PowerEdge T420 Technical Guide
6 Storage
The Dell PowerEdge T420 supports internal and external storage options and controllers, different
drive types, and different chassis configurations for a varied number of drives.
Internal storage
The T420 has one chassis that supports three different drive bay options:
4 x 3.5-inch cabled drive bays
8 x 2.5-inch or 3.5-inch hot-plug drive bays
16 x 2.5-inch hot-plug drive bays
Supported hard drives
The T420 supports up to 16 2.5-inch or eight 3.5-inch hard drives or solid-state drives.
Self-encrypting drives (SED) are available. Table 12 lists more information about these drives. For
additional information, see Dell.com/PowerEdge.
Table 12. Supported hard drives
100GB, 200GB, 400GB, 800GB
500GB, 1TB, 2TB, 3TB, 4TB
External storage
External storage for the T420 is available through SAS 6Gbps. For more information, see
Dell.com/Storage.