13 PowerEdge R620 Technical GuideChassis featuresTable 4 lists the features for the R620 chassis. For additional information, see theDell PowerEdgeR620 Owner’s Manual on Dell.com/Support/Manuals.Table 4. Chassis featuresFeature DescriptionPower button ACPI-complaint power button with an integrated green power LEDFront bezel Covers the system’s front-loading hard drives; can be locked to prevent harddrives from being removedNMI buttonRecessed non-maskable interrupt (NMI) button used to troubleshootsoftware and device driver errors; use only if directed to do so by qualifiedsupport personnel or by the operating system's documentationSystem identification button Buttons on the back and front of a system to help identify the unit in a datacenter environmentHard drive activity LED Indicates the status and activityHard drives Up to ten 2.5-inch drivesUSB connectors 8-drive bay chassis: 2 on front, 2 on back, 1 internal10-drive bay chassis: 1 mini on front, 2 on back, 1 internalvFlash media reader Activated when iDRAC7 Enterprise is enabled; located on 8-drive bay frontpanel and inside the 10-drive bay chassis on the hard drive backplaneInformation tag Slide-out label panel for recording system informationVideo connector Connects a monitor to the systemLCD control panel8-drive bay chassis only; displays system ID, status information, and systemerror messages; two navigation buttons to scroll through the menu on theLCD and one select buttonDiagnostic LED 10-drive bay chassis only; displays error status during system startupOptical drive Optional ultra-slim (9.5mm) SATA DVD drive or DVD+RW driveTape drive Optional external tape drive through the SAS 6Gbps HBAPower supply units Supplies power to the systemPower supply indicators Indicates whether system has powerNIC indicators Indicates network activity and statusPCIe expansion card slots Connects up to three PCIe expansion cardsEthernet connectors Choices of network connectors through the Select Network AdapterSerial connector Connects system to serial device and for console redirectiDRAC7 Enterprise port Dedicated management port for optional iDRAC7 EnterpriseQuick Resource Locator(QRL)This code on the chassis can be scanned by a smartphone application toaccess additional information and resources for the server, including videos,reference materials, service tag information and Dell contact information.