Sun 371-0912 (X7286A) low-profile PCI-X network adapter delivering 1 Gigabit Ethernet connectivity over multimode fiber (MMF). Designed for Sun Fire servers (V20z, V40z, X4100, X4200, X4200 M2, X4500, X4600, X4600 M2) and Sun Ultra 40/40 M2 workstations. Low-profile form factor fits space-constrained chassis; PCI-X interface provides backward compatibility with PCI-X slots. MMF transceiver supports distances to 2km on standard multimode cabling, ideal for high-speed data center interconnects and cluster environments. RoHS-6 compliant. Refurbished units tested and guaranteed; available via quote.