Based on this product's specifications, here are some alternatives and similar models
Internal Fiber Network Card broadcom hw BCM957504-N425G — PCI Express, 25 Gbps, Fiber, Aluminium/Green/Nickel
Summary description:
Broadcom BCM957504-N425G is an internal wired network card with a PCI Express host interface and fiber connection. It supports a maximum data transfer rate of 25,000 Mbit/s (25 Gbps) and is intended for high-speed server and workstation networking. The card’s metal finish (aluminium, green and nickel accents) and 0.117 kg weight suit rack or chassis installations where low-latency, high-throughput connectivity is required.