NEC Express 5800/320Lc - Manual (Page 45)

General Description 2-11
Rear View
CPU module (for Group1) PCI module (for Group2)
PCI module (for Group1) CPU module (for Group2)
Rack-mount model
Tower model
PCI module (for Group2)
PCI module (for Group1)
CPU module (for Group2)
CPU module (for Group1)