Review on StarTech.Com 20Gbps Thunderbolt 3 Cable - 3.3Ft/1M - White - 4K 60Hz - Certified TB3 USB-C To USB-C Charger Cord W/ 100W Power Delivery (TBLT3MM1MW),20Gbps - White by Djuan Thompson

Edit 7/15: It seems this cable IS indeed e-marked! The person I spoke to on the phone at Startech was mistaken! I provided a sample to Benson Leung to examine and this cable has an e-Marker reporting the following: I've increased the rating to 4 stars. Minus 1 only for not being USB-IF certified in the eMarker."> tw sendprime 1 0x104f ff008001Sent CC1 104f + 1 = 381> 12914.135518 SRC/0 [514f]VDM Vff00:DISCID,ACK:ff008041 1c002b1d 00000000 12010310 11082032 VDM Hdr ID Hdr CertStat Product CableCable VDO decoded : HW Version 1 / FW Version 1 / Type-C cable / <10ns latency / Vconn not required / Vbus current 3A / Vbus through cable, yes. / Gen 1 and Gen 2 USB 3.1 support.Overall it looks ok. No CertStat though, so this cable hasn't been certified by USB-IF."I also ran this through my load tester and found it drops .01V at 3A, which compares favorably to other eMarked cables. This might be due to its rather short length, however. (50cm, the others are 1.8m)It still doesn't carry 100W, but there is another model that does: JUCX01 USB 3.1 Type-C to Type-C Coaxial Cable Original review:This is a warning to anyone looking this is the equivalent of a passive USB 3.1Gen2 cable. Don't pay attention to the wording on StarTech's site saying "up to 100W"! That is a mistake and they said they're going to correct it.I had to ask StarTech tech support for clarification since I *need* an active e-marked cable (EMCA), and they explained this is a passive cable, and can be because the cable run is so short (50cm). Keep in mind mechanically, this is *IDENTICAL* to a regular USB3.1Gen2 (USB-C "full featured" 3.1) cable. At most StarTech may have run these at 40Gbit to make sure they work OK, and it has the lightning logo, that testing's what you're paying for.If you are looking for an EMCA for an application that requires it, Pluggable and Belkin are the only 2 I am aware of. StarTech said nobody in Industry makes a 100W cable yet. I'll have to keep looking.Current (60W only) EMCA e-marked cables: [Certified] Plugable USB-C to USB-C Cable (3.3 ft / 1 m, USB 3.1 Gen 2 Type-C, 3A) Belkin USB-IF Certified 3-Foot 3.1 USB Type C (USB-C) to USB Type C Cable Google "USB Type-C Authentication specification" for details