NG Ethernet Forum

Cabling standards can be quite confusing and I am not quite sure myself about which naming is standardized and which is just made up in the marketing department.
However, this is what I found out about Cat6 and Cat6e.
Major cabling specifications are produced by the ISO/IEC, which classifies the cables into Classes (class A, class B, class C, class D, class E, class F) and by ANSI TIA/EIA, which defines Categories (Category 3, Category 5, Category 6, Category 7).

to be described soon:
- names -> "Cat6e", "augmented Cat6", "enhanced Cat6"
- return loss -> connector return loss (Cat5 = 14dB, Cat5e = 20dB, Cat6 = 24dB, Cat6e = 28dB)
-> patch cable return loss for Cat5e, Cat6 and Cat6e (no requirement for Cat5)
- NEXT = Near End CrossTalk -> mitigated by NEXT cancellation in PHY controller
- ANEXT = Alien Near End CrossTalk
- Cat5 / Class D (100MHz), Cat6 / Class E (250MHz), Cat6e/Cat6a (500MHz), Cat7 / Class F (600MHz)
- Cat 6 Standard

Generally speaking, starting with Cat5 - Cat5e, Cat6 and Cat6e are the same cable with increased (more stringend) parameter requirements in loss, crosstalk and bandwidth per pair.

More on this later ...

Can help with the details - feel free to add your knowledge...