HFBR-0536 · Eval Kit for proprietary data com apps at data rates up to 32 MBd with AN 1121 figs. 3 & 4 circuits HFBR-0537 · Eval Kit for proprietary data com apps at data rates up to 32 MBd with AN 1121 figs. 3 & 5 HFBR-4531 · Plastic Fiber Connector - Crimpless (Black) HFBR-4532 · Plastic Fiber Connector - Crimpless (non-latching) HFBR-4533 · Plastic Fiber Connector - Crimpless (Blue) HFBR-4535 · Plastic Fiber Connector - Crimpless (Grey)