Corby Corby 4056 Line Extender Module (LEM) JMAC# CORBY-4056 LINE EXTENDER FOR WIEGAND/PROXIMITY READERS TO INCREASE DISTANCE 500LINE EXTENDER FOR WIEGAND/PROXIMITY READERS TO INCREASE DISTANCE 500 UPC: 769586040564 Also known as: CY-4056 For more information about the Corby 4056, please contact us. MSRP: Was: Now: $64.75 In Stock Expedited Shipping Available Need it Tomorrow? Need it Tomorrow? Select the NEED IT FAST shipping option at checkout and a member of our team will contact you promptly with any available Expedited Shipping options once we receive your order. Add to Cart