J9989A HPE - Aruba 54/82 v3 1G zl2 Module HPE 5400R zl2 Switch Series J9989A Specification HPE J9989A HPE J9989A Specifications Product Type HPE 5400R zl2 Switch Series Modules Supported Devices HPE 5400R zl2 Switch Series Weight 2.07 lb Product dimensions (H x W x D) 10.3 x 8.13 x 1.75 in shows the comparison between HPE J9989A and J9731A. Product Code J9989A J9731A Differentiator HPE 5400R zl2 Switch Series HP 2920 Switch Series Weight 2.07 lb 0.33 lb Product dimensions (H x W x D) 10.3 x 8.13 x 1.75 in 4 x 4.18 x 1.4 in