it uses the standard SMI Connector, The connector snaps into a flush fit.
Manufactured in China
$4.95 per each
SMI single mount bulkhead, SMI Connector
107 in stock (can be backordered)
Duplex Bare Fiber coupler, 2.2mm jacket, less than 2 db loss,
LC MM bulkhead, alignment sleeve for 1 mm POF, low loss
For use with plastic optical fiber cable 2.2mm OD with 1 mm core/cladding
LC duplex bulkhead connector, with IP67 rated housing designed to couple with other IP67 LC connectors. Designed for front or rear panel mounting, with 3.2mm maximum panel thickness. Dust cap included.