CAT6a UTP or S/FTP in datacenter?

Hi all,

I've found some other threads regarding this (i.e. https://www.reddit.com/r/networking/comments/80nzde/shielded_patch_cables_in_rack_or_just_utp/ ) but since it does not match our case completely I'd like to ask to be sure...

We currently use CAT6a S/FTP cables to cable our network from the servers <-> switch within the same rack. All cables are mostly 2M tops, with perhaps a handful 5M cables.

We thought shielded = better, especially in a datacenter environment however compared to UTP cables the (lack of ) flexibility is quite a pain which makes cable management harder.

Looking online I see some mixed signals regarding UTP vs S/FTP cables so I'd like to ask for opinions to be sure:

• The CAT6a cables are 2M to max. 5M
• We do run 10G networking
• We connect them between the servers and switches within the same rack.
• There's quite a few network cables bundled together. We have 2x 48 port switches and most ports are connected.
• The A/B power feeds for the servers are left/right so we cannot have all PSU cables on one side and network cables on the other side. This means some network cables will be close to the power cables. Unfortunately there isn't much space at the back of the rack to separate the PSU + network cables.