Your search for "ABCU-5710RZ" revealed the following:
NEW Avago ABCU-5710RZ 1GB BASE-T RJ45 SFP Transceiver
SKU: NSN-9525
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Avago ABCU-5710RZ 1GB BASE-T RJ45 SFP Transceiver
SKU: NSH-4191
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days