4 usb ssd connectors, 5 sata ssd connectors, 6 leds significations – Kontron AT8940 User Manual
Page 36: 1 hot swap led (blue), Usb ssd connectors, Sata ssd connectors, Hot swap led (blue)

Board Features
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2.5.4
USB SSD Connectors
The USB SSD Flash Disk are USB 2.0 SSD type storage module builds up with NAND flash memory.
• Solid State Drive (SSD)
• Single Port USB 2.0 interface
• Capacity: 2 GB
• Vendor: INTEL
• Package: Low Profile
2.5.5
SATA SSD Connectors
The AT8910 supports two SATA SSD sockets according JEDEC MO-297 Slim Lite SSD Assembly.
The supply voltage are 12.0 V, 5 V and 3.3 V.
2.6
LEDs Significations
2.6.1
Hot Swap LED (Blue)
Solid On
(100 % on):
FRU Inactive
Long Blink
( 90 % on):
FRU Activation Request
Solid Off
( 0 % on):
FRU Activation In Progress / FRU Active
Short Blink
( 10 % on):
FRU Deactivation Request / FRU Deactivation In Progress
Signal Path:
USB SSD Sockets are located on J2 and J6.
Signal Path:
SATA SSD Sockets are located on J3 and J12.