Hewlett Packard z420 Certifications Product Versions Level Red Hat Enterprise Linux (x86_64) 6.2 - 6.x Certified [1] Red Hat Enterprise Linux (x86_64) 5.8 - 5.x Certified [2] Additional Notes Hardware update requires updated version of RHEL Is USB 3.0 supported in Red Hat Enterprise Linux 5?Does Red Hat support the integrated audio on my graphics adapter with DisplayPort? Vendor: Hewlett-Packard Hewlett-Packard web site