That looks like a dev board, not a production design (going off the internal barrel connector in the one picture). The layout was probably done with the intent of making it easy to tinker with (possibly to the extent of swapping in arbitrary control chips and output ports while being able to leave the debug hardware unchanged) not compact.
If I understand what you mean, the "hump" ensures that all the traces are the same length, thus the signal arrives at the same time. It is a dev board so there is a lot of space and it is very obvious. Retail stuff hides this more by being much more dense in a smaller area.
Yeah, the funky routing was the first thing I noticed. Not the path-length-mathcing chicaning - that's standard fare - but that the traces are curved rather than angled. Welcome to the realm of ultra-high-frequency routing, I guess. Expect to see more of this with PCIe 4.0 and 5.0.
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LauRoman - Wednesday, May 29, 2019 - link
Those traces though?DanNeely - Wednesday, May 29, 2019 - link
That looks like a dev board, not a production design (going off the internal barrel connector in the one picture). The layout was probably done with the intent of making it easy to tinker with (possibly to the extent of swapping in arbitrary control chips and output ports while being able to leave the debug hardware unchanged) not compact.bubblyboo - Wednesday, May 29, 2019 - link
He obviously meant the curved traces, most likely that one on the bottom that's not only curved but also has a hump for some reason.Death666Angel - Wednesday, May 29, 2019 - link
If I understand what you mean, the "hump" ensures that all the traces are the same length, thus the signal arrives at the same time. It is a dev board so there is a lot of space and it is very obvious. Retail stuff hides this more by being much more dense in a smaller area.shabby - Wednesday, May 29, 2019 - link
Ugly I know, not buying it because of that..imaheadcase - Wednesday, May 29, 2019 - link
What is ugly about something that you never will see? lolshabby - Wednesday, May 29, 2019 - link
Forgot the /ssheh - Thursday, May 30, 2019 - link
Also only one LED, and not RGB. :(edzieba - Thursday, May 30, 2019 - link
Yeah, the funky routing was the first thing I noticed. Not the path-length-mathcing chicaning - that's standard fare - but that the traces are curved rather than angled. Welcome to the realm of ultra-high-frequency routing, I guess. Expect to see more of this with PCIe 4.0 and 5.0.arashi - Thursday, May 30, 2019 - link
Wonder if they could add a DP in on the back of the card so you can still use alt mode with a non 3.2x2 device.HStewart - Thursday, May 30, 2019 - link
"(i.e., we are at least 1.5 – 2 years away from USB4-enabled PCs)"I believe we have most of support right now with Thunderbolt 3.0 - but it going to be nice once USB4 to see cheaper TB3 compatible devices.
tzznqqphpcws - Tuesday, August 25, 2020 - link
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