Check the listing for details. SPIRENT LAN-3201A SMARTMETRICS 1000BASE-SX. Condition: Used. Listed at 29.96 USD. SPIRENT LAN-3201A SMARTMETRICS 1000BASE-SX (206785) In Stock & Ships within 24 Hours of Cleared Payment Units come with a 90 day warranty for electrical equipment and if it fails within a 90 day period it may be returned for a full refund and a 30 day warranty for non - electrical equipment. Seller will pay return shipping on any units that need to be returned. Returns not accepted if unit has been damaged. Units must be returned in original shipping package. Your satisfaction is very important to us. If you experience a problem of any kind with your purchase please contact us first before leaving any feedback or opening any claims. We stand behind our products and will do everything in our power to make sure that you feel satisfied with your purchase. Our Customer Support Team is available 8:30 AM- 5:00 PM Monday thru Friday EST. Please contact us with any questions through eBay messages and allow a 24 hour response time during the weekdays only. (AECI can and will, upon buyers request, ship an item via FedEx, UPS, or DHL on buyers account number if provided. If international buyer, please inquire prior to purchasing if you wish to exercise this option and we can offer a listing that does not go through eBay’s Global Shipping Program.) © American Electronic Components, Inc. (AECI) Serving the Electronic and Telecom Industry since 1979