Introducing the Juniper SRX600-BLNK-02 Sre & Multi-Use Processor Slot Blank Cover - Spare - For Srx 650.Chassis. This Is Spare As Blank Covers For Sre Slots Are Included With Each Chassis (Except One Needed For Normal Operations).. We offer the best price and excellent service. Our dedicated team is here to find your perfect solution. Request a quote or contact us now for prompt assistance.