J&M Z-Series Replacement 8-pin Upper-Section, Right-Angle, Hook-Up Cord Z-Series Component / replacement 8-pin, upper-section, right-angle, hook-up cord. Heavy-duty Z-series component 8-pin upper-section right-angle hook-up cord. It may also be used as a replacement for the 8-pin upper-section hook-up cord that is included with all J&amp;M Elite Series headset #&rsquo;s HS-ECD629, HS-ICD629, HS-ECD584, HS-ICD584, HS-ECD477, HS-ICD477, HS-ECD374, HS-ECD271 and HS-ECD269. This cord part# HC-ZAL supersedes the previous part#&rsquo;s HC-AAL and HC-AA as they are all interchangeable.