Investor Presentaiton

UT Comparables Unit: US$ Unit: US$ As of 9/2/2015 Ticker UTSI CALX RKUS INFN CIEN Peer Avg Current Share Price 1.98 7.85 11.26 22.05 22.49 Market cap (Millions) 74 408 986 2893 2865 Cash 74 99 212 402 731 Debt 0 0 0 121 1307 Book value per share 2.95 5.02 3.24 4.12 1.30 Price-to-Book 0.67x 1.6x 3.5x 5.4x 17.4x 3.5x Enterprise Value 0 309 774 2612 3441 2016 Revenue 119 450 441 1066 2707 2016 Gross Margin (%) 27% 50% 69% 47% 44% 53% 2016 EBITDA 6.0 31 80 186 421 2016 EBITDA Margin 5% 7% 18% 17% 16% 14% EV-to-Revenue 0.0x 0.7x 1.8x 2.5x 1.3x 1.5x EV-to-EBIDA 0.0x 10.0x 9.7x 14.1x 8.2x 10.5× 17

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