This appears to be a hardware maintenance service contract for HP/HPE FlexNetwork 5520H network switches, offering 24x7x4 support (24 hours per day, 7 days per week, 4-hour response time) on a monthly basis.
Specification
Service Type: Hardware Maintenance
Support Level: 24x7x4 (24 hours/day, 7 days/week, 4-hour response)
Billing: Per month
Applicable Equipment: HP FlexNetwork 5520H Series Switches
Support Coverage: Hardware failures and component replacement