The TIA introduced two performance standards; Category 6 (CAT6) and Category 6A (CAT6A). However, there is no CAT6e standard. This blog helps explain.
What is the real difference between CAT6 and CAT6A? - Warren & Brown Networks
The Difference Between cat6 Ethernet Cable and cat6e Ethernet Cable - Copperled Technology Co., Ltd.
What is the difference between the Cat6A and Cat6 patch panels? - Quora
What is the difference between cat 6 cat 6a and cat6e?
Differences Between Cat6 and Cat6a Cables
What are the differences between CAT6, CAT6e, and CAT6A?
Cat6 vs Cat6a: What's the difference? – VCELINK
The Difference Between Cat6 vs Cat6A Ethernet Cable
What is the difference between CAT6 and CAT6e? - ICC
Best Ethernet Cable & Server Racks - 4Cabling
Premium Wires: CAT5e vs. CAT6 vs. CAT6e vs. CAT6a vs. CAT7 for Structured Cabling