Haven't seen one. With the huge heat sink and serialization circuitry on the X2, what advantage would a single strand connector bring? MRV may have one if anyone does, though. -----Original Message----- From: Andrey Slastenov [mailto:a.slastenov@gmail.com] Sent: Thursday, February 19, 2009 1:06 AM To: nanog@nanog.org Subject: Single fiber 10Gb/s X2 or Xenpak transceiver Hi Guys. Do you ever see single fiber 10Gb/s X2 or Xenpak transceiver? (I know about SFP, but never see X2 or Xenpak before)