TX2550 M4 Operating Manual 25
Drive bays
Operating panel
Hard disk bay
configuration
Up to 32x hot plug 2.5-inch, or up to 12x hot plug 3.5-
inch
Up to 8x PCIe SSD
Accessible drive bays Up to 3x 1.6-inch drive bays for ODD or backup
Operating buttons On/off button
Reset button
NMI button
ID button
Status LEDs Global error indicator (orange)
ID indicator (blue)
HDD activity indicator (green)
Power-on indicator (green)
AC connected indicator (green)
CSS indicator (orange)
Status LEDs at system
rear side:
Global error / CSS / ID indicator (orange / orange /
blue)
LAN connection indicator (green)
LAN speed indicator (green / yellow)