SIIG 1X4 HDMI 1.3 CAT5E - Manual (Page 5)

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Shielded STP cables are better suited than
unshielded UTP cables. A solid UTP CAT5e cable
shows longer transmission distance than stranded
STP CAT6 cable. For long extension users, solid
LAN cables are your best choice.
4. EIA/TIA-568-B termination (T568B) for LAN cables
is recommended for better performance.
5. To reduce the interference among the unshielded
twisted pairs of wires in the LAN cable, you can use
shielded LAN cables to reduce EMI problems.
6. Because the quality of the LAN cables has a major
effect in the transmission distance, the actual
transmission length is subject to your LAN cables.
For resolution greater than 1080i or 1280x1024, a
CAT6 cable is recommended.
7. If your HDMI display has multiple HDMI inputs, it
is found that the first HDMI input (HDMI input #1)
generally can produce better transmission
performance among all HDMI inputs.