400G long-distance transceivers such as LR4, ZR, and ZR+ range from approximately $10,000 to over $130,000 depending on vendor and reach.Price OverviewLR4 (Long Reach 4): Supports up to 10 km over sin...
| Module | Typical Reach | Fiber Type | Notes |
|---|---|---|---|
| LR4 | Up to 10 km | Single-mode | Standard long-distance DCI |
| ZR | 80+ km | Single-mode | Coherent optics for metro and intercity links |
| ZR+ | 80–120 km | Single-mode | Enhanced coherent optics for extended DCI |
For data center interconnection, selecting the right 400G transceiver depends on distance, fiber type, and budget. LR4 modules are suitable for up to 10 km, while ZR and ZR+ modules are required for metro or long-haul DCI links. Prices vary widely, from $10,000 for LR4 third-party modules to $130,000+ for OEM ZR+ modules, so careful vendor and module selection is essential to optimize cost and performance .
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