newegg offers the Rosewill Cable Tester, model no. RTK-006, for $6.99. Coupon code "RWEMACC2504" cuts that to $5.24. With free shipping, that's $2 under last month's mention and the lowest total price we could find now by $8. This device is intended to help verify cable continuity and test the pin configuration of several types of cable. Deal ends April 25.