Corby Corby 4239 JMAC# CORBY-4239 SURGE PROTECTION DEVICE RS232 For more information about the Corby 4239, please contact us. MSRP: Was: Now: $40.75 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