Product UPC: 027802851630 HP J8706A ProCurve Switch 5400zl 24p Mini-GBIC Module Specifications: Ports: 24 open mini-GBIC slots Physical characteristics: Dimensions: 10.3" x 8.1" x 1.8" Weight: 2.0 lbs. Environment: Operating Temperature: 32??F to 104??F (0??C to 40??C) Notes: This product requires revision "B" or later mini-GBICs (product number ends with the letter "B", e.g. J4858B, J4859B). When installed in a 5400 chassis, the J8706A module limits the operating temperature range of the chassis to 32??