Price of 400G Optical Network Switch

400G optical switches typically range from $100,000 to over $1 million, with 400G optical modules costing $1,500 to $4,000 per unit depending on type and vendor.Switch Hardware CostsHigh-performance 400G switches and routers are a major investment. Prices vary based on port density, configuration, and brand, with typical units ranging from $100,000 to over $1 million . Modern 400G switches consolidate multiple 100G ports into a single 1RU chassis, improving rack efficiency, reducing power consumption by ~40%, and lowering cooling requirements . This consolidation also reduces fiber management complexity and overall operational costs.Optical Module CostsThe cost of 400G optical modules depends heavily on form factor, reach, and vendor:Short-reach SR8 modules (in-rack connections) cost $1,400–$1,800 from third-party vendors .DR4 and FR4 modules (cross-row or campus links) are moderately priced, with third-party competition driving cost compression .LR4, ZR, and ZR+ modules (long-haul or DCI) can exceed $10,000–$130,000 per unit, especially from OEMs .Coherent optics for long-distance connections are the most expensive but provide higher efficiency and reach . QSFP-DD and OSFP are the most common 400G form factors, with QSFP-DD dominating data center deployments .Total Cost of Ownership (TCO) ConsiderationsBeyond hardware and module costs, TCO includes:Power consumption: 400G switches typically draw 1,500–3,000 watts, with modules consuming up to 20W per port .Cooling requirements: High-density deployments require advanced air conditioning or liquid cooling, increasing operational expenses .Rack efficiency: Consolidating 400G ports reduces the number of chassis and cables, lowering both CapEx and OpEx .Market TrendsThe cost-per-bit of 400G has recently dropped below 100G, making 400G switches economically viable for both greenfield and brownfield deployments . Third-party vendors offer significant savings compared to OEMs, particularly for short- and medium-reach modules . In summary, planning a 400G deployment requires considering both the upfront switch and module costs and the ongoing operational expenses, with careful selection of module type and vendor to optimize TCO.