1.4.1AMC
The Sun Netra CP3250 blade server has one AMC slot, with eight lanes of PCIe, to provide additional I/O to the front panels or to the rear of the enclosure when used with an ARTM.
The Sun Netra CP3250 blade server supports AMC
1.4.2Advanced Rear Transition Module
You can install one of the optional Netra CP32x0 advanced rear transition modules (ARTMs) into the rear of the ATCA shelf, opposite the Sun Netra CP3250 blade server.
For more information, refer to the following documentation: Sun Netra CP32x0 SAS Storage Advanced Rear Transition Module, Dual HD User’s Guide