THE N5550 INTERIOR

Opening the chassis of the N5550 couldn't be easier since you just need to release the 3 screws at the rear (they are not removable so you need not worry about losing them), pull the top up and slide the rear end backwards.

Once you remove the mainboard with the rear end you can easily spot an unused mSATA port, the USB 3.0 controller by NEC/Renesas, the Realtek ALC262 2-chanel audio chip, the dual Intel 82574L Gigabit Ethernet IC's and the Silicon Image SIL3132 PCIe to eSATA chip.

The pre-installed DDR3 SO-DIMM is by Transcend and is set at 1333MHz (there's a second SO-DIMM spot behind it).

Both the Intel chipset and the D2550 CPU are covered with two medium sized heatsinks.

The 1GB industrial MDS Module (Micro Disk SATA) is manufactured by Afaya and is used for the OS.