HP J4856-69001 - ProCurve 9300 unmanaged mini-GBIC port module - Has eight open slots for mini-GBIC transceiver modules - (J4856A) Retail
HP J4857-69201 - ProCurve 9300 redundant management mini-GBIC port module - Has eight open slots for mini-GBIC transceiver modules - (J4857A) Retail