Cisco QSFP-100G-ER4L-S Compatible 100GBASE-ER4 QSFP28 Transceiver Module (SMF, 1310nm, 40km, LC, DOM)
* Requires 10dB fixed attenuator (ID# 48526) for <= 1km; 6dB fixed attenuator (ID# 11820) for <= 10km.
Requires 5dB fixed attenuator (ID# 48523) for <= 15km;
Attenuator is available as a spare.
** Full 40km reach requires the use of FEC on the host platform. Without FEC, the reach is 30km.
Connection for 100G QSFP28 ER4 Transceivers with FHD Fiber Adapter Panel and Optical Attenuator
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Please Note: Installing a third party transceiver does not void your network equipment warranty. Network equipment manufacturers all have guidelines stating that warranty support on their products will not be affected.