0.50+/-0.01 meters long (measured from ferrule tip to ferrule tip), 400um OD acrylate buffered, 8/125um 1550nm Panda PM fiber patchcord terminated with an SC/APC connector on one end and a Super PC polished MU connector on the other end. Both ends are pre-aligned and locked to PM slow axis. ER is minimum 20dB. SP: Referes to the length tolerance.