AddOn Media Converters and Network Interface Cards are 100% compliant for all of our networking needs. ADD-MCC1MSM20 provides a 10/100M Base-T to 100Base-LX fiber port. Economically priced. Stretch your IT budget by using AddOn products - DRAM, SFP/GBIC Transceivers, Media Converters, Fiber Optic NIC cards, etc. (MUST USE with ADD-RACK-16 or ADD-MRACK-16. In order to be used as standalone media converter, you must also purchase ADD-CHASSIS)