Make Universal Transceivers work with nearly every device

FLEXBOX series - the unrivaled original since 2008

  • Quick and easyConfiguration only takes a few seconds
  • VersatileSupport for more than 150 vendors
  • All formfactorsIndustry's first end user device supporting all 100G pluggables
  • Save moneyGet a discount - if you configure transceivers yourself
Get Your FREE FLEXBOX* *One free FLEXBOX per company.

What's new?

FLEXBOX supporting Universal CFPs - now in stock

We've designed an additional model of our FLEXBOX series, now supporting our Universal CFP, CFP2 and CFP4 optics in addition to our already established form factors SFP, SFP+, SFP28, XFP, QSFP+ and QSFP28. Get your CFP capable FLEXBOX now Self-configure option for CFPs in our store Once you own a FLEXBOX supporting CFPs you get your usual discount by configuring CFPs…

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Why using CDR / 3R / Clock-Data Recovery

As already discussed in my blog post History / Technical details Tunable DWDM SFP+ there are transceivers with integrated CDR (e.g. XFPs) and without it (e.g. SFP+). Now your probably have the following questions in mind: What does CDR stand for? What do I use a CDR for? When do I have to use a transceiver with CDR? Which advantages come with a CDR? What does CDR stand for?…

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Customer feedback

Donal Cunningham

"Just wanted to express my giddy happiness at how fast your crack team of ninjas were able to get optics to my desk."

Christian Seitz

"With the FLEXBOX we’re able to use our Transceivers universally in all kind of equipment and reduce the stock keeping significantly. Just awesome!"

Stefan Ideler

"The FLEXBOX is the best thing since sliced bread!"

James Rice

"Great. FLEXBOX does what it says on the tin! - just connect, configure Transceiver and be happy."