•
Four RJ-45 ports, where two ports support maximum of 10 G and the other two ports maximum of 1 G
•
Two RJ-45 ports that support up to 1 Gbps and 2 SFP+ ports that support up to 10 Gbps
•
Four SFP+ ports that support up to 10 Gbps
•
Two SFP28 ports that support up to 25 Gbps
VGA ports
The Video Graphic Array (VGA) port enables you to connect the system to a VGA display.
The PowerEdge R840 system supports two 15-pin VGA ports, one each, on the front and back of the system.
Serial connector
The serial connector on the rear of system for serial device connection and console redirection.
The PowerEdge R840 system supports one serial connector on the back panel, which is a 9-pin connector, Data Terminal Equipment
(DTE), 16550-compliant.
IDSDM or vFlash module
The PowerEdge R840 system supports optional Internal Dual SD module (IDSDM) or vFlash module. In 14
th
generation of PowerEdge
servers, IDSDM or vFlash module is combined into a single card module, and are available in these configurations:
•
vFlash or
•
vFlash and IDSDM
The IDSDM or vFlash module is located in a slot on the back of the system. The module supports three microSD cards; two cards for
IDSDM and one card for vFlash. The following capacities are supported:
•
IDSDM: 16 GB, 32 GB, 64 GB
•
vFlash: 16 GB
NOTE:
There are two dip switches on the IDSDM or vFlash module for write-protection.
NOTE:
One IDSDM card slot is dedicated for redundancy.
NOTE:
Use Dell branded microSD cards associated with the IDSDM or vFlash configured systems.
Video specifications
The PowerEdge R840 system supports integrated Matrox G200eW3 graphics controller with 16 MB of video frame buffer.
Table 10. Supported video resolution options
Resolution
Refresh rate (Hz)
Color depth (bits)
1024 x 768
60
8, 16, 32
1280 x 800
60
8, 16, 32
1280 x 1024
60
8, 16, 32
1360 x 768
60
8, 16, 32
24
Technical specifications