That said... https://www.cablinginstall.com/sponsored/berk-tek/article/16482585/the-hidden-costs-of-running-25-5gbaset-over-cat-5e-cat-6-cabling https://www.ca

That said... https://www.cablinginstall.com/sponsored/berk-tek/article/16482585/the-hidden-costs-of-running-25-5gbaset-over-cat-5e-cat-6-cabling https://www.cablinginstall.com/sponsored/berk-tek/article/16... ... points out that 5GBASE-T needs 200 MHz channel bandwidth which is past what Cat 5e is specified for. So perhaps for runs approaching 100 meters or in noisy environments, Cat 5e won't be reliable for 5GBASE-T after all.