HP J4857-69201 - ProCurve 9300 redundant management mini-GBIC port module - Has eight open slots for mini-GBIC transceiver modules - (J4857A) Retail
HP J4893-69001 - Replacement ProCurve Switch gl 6-port mini-GBIC module - Includes six mini-GBIC (SFP) transceiver ports - (part of J4893A) Retail