ACP J4859C-AO 1000Base-LX/LH SFP Transceiver Module F/HP Procurve
Why pay high OEM prices? ACP's transceivers (GBIC, SFP, XFP and XENPAK) are a fraction of the OEM's price, are 100% compatible, and come with a lifetime warranty (instead of a 90 day warranty from the OEM).