Table 19. Storage controller cards  
Supported storage controller card
Software RAID
● S160
Internal controllers
● PERC H965i
● PERC H755
● PERC H755N
● PERC H355
Internal Boot
● Boot Optimized Storage Subsystem (BOSS-N1): HWRAID 2 x M.2 SSDs
External controllers
● HBA355e
SAS Host Bus Adapters
● HBA355i
GPU specifications
The PowerEdge R7615 system supports up to three 300 W double-width GPUs or eight 60 W single-width GPUs.
NOTE: Systems configured with GPUs will have higher fan acoustics.
Drives
The PowerEdge R7615 system supports:
● 8 x 3.5-inch hot-swappable SAS or SATA drives
● 12 x 3.5-inch hot-swappable SAS or SATA drives
● 8 x 2.5-inch hot-swappable NVMe drives
● 16 x 2.5-inch hot-swappable SAS, SATA, or NVMe drives
● 24 x 2.5-inch hot-swappable SAS or SATA drives
● 2 x 2.5-inch rear hot-swappable SAS, SATA, or NVMe drives
● 4 x 2.5-inch rear hot-swappable SAS, SATA, or NVMe drives
● Zero drive
NOTE:
 For more information about how to hot swap NVMe PCIe SSD U.2 device, see the Dell Express Flash NVMe PCIe
SSD User's Guide at https://www.dell.com/support >Browse all Products > Data Center Infrastructure >  Storage
Adapters & Controllers > Dell PowerEdge Express Flash NVMe PCIe SSD > Documentation > Manuals and
Documents.
Ports and connectors specifications
USB ports specifications
Table 20. PowerEdge R7615 USB specifications 
Front Rear Internal (optional)
USB port type No. of ports USB port type No. of ports USB port type No. of ports
USB 2.0-
compliant port
One USB 2.0-
compliant port
One Internal USB 3.0-
compliant port
One
Technical specifications 31