The dual-processor HP Z820 Workstation delivers outstanding performance an award-winning industrial design and tool-free serviceability in our most expandable chassis With next-generation Intel 174 Xeon 174 processors support for up to 24 processing cores and the latest professional graphics delivering the ultimate performance to help the user to accomplish more every minute The Z820 uses a current-generation 6 gigabit-per-second SAS Serial Attached SCSI hard drive controller And the Z820 has four USB 3 0 ports two in the front and two in the back along with five USB 2 0 ports The Z820 also has more I O slots and more of those are high-performance slots Contact us Globalnettech Technologies Mobile no 91 90360 10005 Office no 080-65707504 Email address enquiry globalnettech com http globalnettech com Product Page http globalnettech com hp-z820-workstation-on-rental-bangalore-chennai-hyderabad-cochin-mumbai-pune-delhi-noida-gurgaon