HP J4878-61301 - ProCurve Switch GBIC Module - Provides four slots for installing any of the supported ProCurve mini-GBIC`s (GBIC´s Not included) Retail
HP J4856-69001 - ProCurve 9300 unmanaged mini-GBIC port module - Has eight open slots for mini-GBIC transceiver modules - (J4856A) Retail
HP J4893-69001 - Replacement ProCurve Switch gl 6-port mini-GBIC module - Includes six mini-GBIC (SFP) transceiver ports - (part of J4893A) Retail