Optional extra long Rear Mounting Bracket 65 cm (EoS May 27, 2017 or while supplies last)

GigaTAP-LX 1310nm Singlemode tap module, 2 taps per module, 420 Chassis (Special Order) (EOS)

GigaLINK-ER -SFP+ for GigaVUE-420, SM 1550 10 Gig port module (Special Order) (EOS)