#ReDrivers
I love HighPoint so much. So many awesome things. But what a stupid fucking product. Hot and expensive and inefficient, but basically all compensating for lack of PCIe bifurcation.

That said hopefully we see some more redrivers on bifurcators. That would do 99%.
December 30, 2025 at 5:59 AM
I really hope we get better at redrivers / retimers. Especially ones for cables.

Ideally I also want multipole switching. 3:1 please! Kinda sucks because it sort of has to be bidirectional switching I think perhaps? But man I want more reconfigurable ports.
December 24, 2025 at 7:29 AM
Gen 6 at 64 GT/s will force retimers deeper into the channel; redrivers simply won't cut it for the loss budgets on those 200+ GB/s links.
May 14, 2026 at 6:23 AM
Ciena's acquisition of Nubis Communications brings ultra-low power copper connectivity and co-packaged optics to AI workloads. Helen Xenos explains how linear redrivers enable efficient scale-up applications. 🔗 ngi.fyi/ocp25-ciena-hx #AIInfrastructure #Optics
#OCPSummit25: Connecting the AI Data Center Fabric
Helen Xenos from Ciena presents the company's comprehensive AI infrastructure solutions at OCP, including their industry-first single carrier 1.6 terabit per second coherent solution, ultra-low power metro DCI with 400 gig and 800 gig coherent pluggables, photonic line systems for data center racks, and capabilities from their Nubis Communications acquisition for linear red drivers and XT optical engines supporting both scale-up and scale-out applications.
ngi.fyi
October 21, 2025 at 4:03 PM
This is my understanding. Don't quote me on this. I don't even know if these cards actually have redrivers. i assumed they do and i wont find out if they work until i actually put everything together.
April 12, 2026 at 6:13 PM
The reason is that PCIe 5.0 is super fast, and because it's super fast, any small defects in the cable can cause single integrity losses and knock the connection down to PCIe 4.0. This is needed because it has redrivers, which, as far as I understand, are like amplifiers that boost the PCIe signal.
April 12, 2026 at 6:12 PM
it's me, i'm dilemma. but seriously, sinking unhealthy amounts of time into USB3 signal integrity atm
August 1, 2025 at 7:17 PM
also, i'm considering to deploy redrivers, but not sure which location would be strategically the best. in front of the connectors on the motherboard (kind of mid way between host and device), or on the "satellite" boards, i.e. closer to usb devices. i guess i lack the gazillion dollar equipment […]
Original post on mastodon.social
mastodon.social
July 11, 2025 at 9:53 AM