Front drive bays: Up to 10 x 2.5 -inch with up to 8 NVMe, SAS/SATA/SSD/NVMe, max 76.8TB , or up to 10 NVMe drives max 64TB. Or up to 4 x 3.5” SAS/SATA, max 64TB, Rear drive bays: Up to 2 x 2.5 -inc