QSFP optical module price and OSFP manufacturer

QSFP-DD modules are generally less expensive than OSFP modules due to smaller size and lower thermal requirements, but both 400G and 800G modules can range from several hundred to several thousand dollars depending on type and vendor.Factors Affecting CostForm Factor and Power HandlingQSFP-DD (Quad Small Form-factor Pluggable Double Density) modules maintain the same width as QSFP28 but double the electrical lanes to 8, supporting 400G and 800G speeds. They are backward-compatible with QSFP28, which can reduce overall deployment costs by allowing reuse of existing 100G optics .OSFP (Octal Small Form-factor Pluggable) modules are larger, with integrated heatsinks to handle higher power (up to 25W), making them suitable for AI workloads and high-performance computing. The larger size and thermal design generally make OSFP modules more expensive than QSFP-DD .Data Rate and Technology400G modules (QSFP-DD or OSFP) are typically less expensive than 800G modules, especially coherent optics for long-distance links.Coherent optics (e.g., 800G ZR/ZR+ for DWDM networks) are significantly more costly due to advanced CMOS and signal processing technology, with prices often in the $3,000–$6,000 range per module for enterprise or service provider applications .Vendor and Supply ChainPrices vary by manufacturer (Cisco, FS, QSFPTEK, etc.) and by region. Bulk purchases or warehouse availability can reduce per-unit cost .Modules from major vendors with guaranteed interoperability and warranty tend to be more expensive than third-party or generic modules.Backward Compatibility and TCOQSFP-DD modules allow reuse of existing QSFP28 optics, potentially lowering total cost of ownership. OSFP modules, while higher in upfront cost, provide better thermal headroom and future-proofing for high-power applications .Typical Price Ranges (Indicative)Module TypeApproximate Cost Range (USD)Notes400G QSFP-DD SR4/LR4$800 – $1,500Short- and long-reach options for data centers400G OSFP SR4/LR4$1,000 – $1,800Higher thermal capacity, suitable for dense AI racks800G QSFP-DD ZR/ZR+$3,000 – $6,000Coherent optics for metro/regional DCI800G OSFP ZR/ZR+$3,500 – $6,500High-power coherent optics with integrated heatsinkSummaryQSFP-DD modules are generally more cost-effective for standard 400G deployments and offer backward compatibility with QSFP28.OSFP modules are more expensive due to larger size, higher power handling, and suitability for high-performance or AI workloads.Coherent 800G modules significantly increase cost due to advanced technology and long-distance capabilities.Choosing between QSFP-DD and OSFP should consider thermal requirements, future upgrade paths, and total cost of ownership, not just the upfront module price . For precise pricing, it is recommended to request quotes from vendors or distributors, as costs fluctuate with supply, volume, and technology generation.