3Com 3CRS48G-24S-91 20-Port Gigabit Ethernet Switch

3Com 3CRS48G-24S-91 is a 4800G-series, 24‑SFP-port managed switch that delivers dense fiber connectivity for midsize networks. It provides 24 SFP fiber interfaces and two rear expansion slots that accept 10-Gigabit expansion modules (XFP), enabling 1- or 2-port 10GbE uplinks for high-bandwidth interswitch links. As a Layer 3 switch, it supports routing and LAN segmentation through VLANs and other built‑in management features, making it suitable as a core or distribution device in campus or data‑center networks. The 24S designation denotes the 24 fiber ports, while the model is engineered for fiber-heavy deployments with versatile uplink options via the XFP slots. Typical applications include data‑center server access, storage or server clusters interconnects, and campus network links requiring scalable fiber connections.