E2O Communications demonstrated an error-free data transmission at a 10Gigabit Ethernet data rate on 320 meters of 62.5 micron multimode fiber using E2O's 1310 nm long wavelength VCSEL along with Scintera's electronics dispersion compensation (EDC) device. E2O's long wavelength VCSEL operates at a data rate of 10.3 Gbps and at an average power of greater than 1 mW from 0 to 70 degrees Celsius. The bit-error-rate (BER) of better than 1E-12 has been demonstrated across the multimode fiber link within the entire operation temperature range. http://www.e2oinc.comhttp://www.scinteranetworks.com