Build dense 100 GbE fabrics without overcommitting on reach or cost with this Arista-compatible QSFP-100G-SR4 QSFP28 transceiver. It is intended for short-reach multimode links, making it a strong fit for leaf-spine architectures, top-of-rack switching, and high-bandwidth server uplinks where the priority is port density and clean cable management. SR4 optics are commonly chosen when the network design keeps endpoints close and the goal is to move traffic efficiently across the rack or row. That makes this module a sensible option for teams standardizing on 100 GbE while avoiding the expense and complexity of long-reach optics that are unnecessary in short-distance environments. Compatibility with Arista deployments helps simplify procurement for organizations that want to maintain a consistent optics strategy across switching tiers. For infrastructure teams, the value is straightforward: preserve 100 GbE performance, keep the physical layer compact, and align the optic to the actual distance the network needs to cover.