ProCare 1 Year 7x24x4 On-site Maintenance for the NetVanta 3458 4305 and 4430 with enhanced feature pack software the NetVanta 6355 4660 5660 and 644 providing: 30 minute response time into technical support access to software upgrades and patches and four hour hardware replacement with ProCare on-site representative available 24 hours a day 7 days a week