Front Ports: Button:
Power On/Off button
System Reset button
LED:
Power status LED
HDD activity LED
1 Network activity LEDs
Fan Fail/System Over Heat LED
Port:
2x USB 3.0 Port(s)
HDD Interface: 24 x 2.5" SAS SSD/HDD or SATA SSD (drives not included)
LEDs: Power indicator
Drive status indicator
Status indicator
Alert indicator
Expansion unit ID indicator
SAS IN port and indicator
SAS OUT port and indicator