2. Installation and Connection
Express5800/R120h-2M (2nd-Gen) User’s Guide
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Chapter 2 Preparations
(1) Preparation before installing to the rack
Four types of rails are provided to be installed on the rack.
Also, the type of the rail is different depending on the drive model of 2.5-inch or 3.5-inch.
Check the following table for each model.
Model name
N code
Part name
Specification
2.5-inch
drive model
N8143-129
Slide Rail Kit for 2U-
2.5inch Server
Ball bearing type rack rail for 2.5-inch drive
model (no inner rail used)
N8143-133
Tool-free Slide Rail Kit
for 2U-2.5inch Server
Slide rail type rack rail for 2.5-inch drive model
(inner rail used)
3.5-inch
drive model
N8143-130
Slide Rail Kit for 2U-
3.5inch Server
Ball bearing type rack rail for 3.5-inch drive
model (no inner rail used)
N8143-134
Tool-free Slide Rail Kit
for 2U-3.5inch Server
Slide rail type rack rail for 3.5-inch drive model
(inner rail used)
Important Rail for left side has different shape from that for right side. Make sure the
orientation of rails to properly install them.
1) Tool-free Slide Rail Kit for 2U N8143-133/134
Checking the inner and outer rails
Check the direction of the inner and outer rails.
Since there are markings of "Right" and "Left" on the outer rail, check the proper directions of right and left
with it. Likewise, check the directions of front and back with the markings of "Front" and "Rear."
On the inner rail, there is no marking for Front, Rear, Right or Left, so refer to the figure below to check the
each direction.
