Specifications

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.
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
The T420 supports up to sixteen 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.
Form
factor
Type
Speed
(rpm)
Capacities
Nearline SAS
7.2K
500G, 1TB
SAS
10K
300GB, 600GB, 900GB
SAS
15K
146GB, 300GB
SAS SSD
N/A
200GB, 400GB
SATA SSD
N/A
100GB, 200GB
SATA
7.2K
250GB, 500GB, 1TB
SATA
7.2K
500GB, 1TB, 2TB
Nearline SAS
7.2K
1TB, 2TB, 3TB
SAS
15K
300GB, 600GB
External storage for the T420 is available through SAS 6Gbps. For more information, see
Dell.com/Storage.