Price SFP Optical Module QSFP28

QSFP28 modules typically range from $35 to $280 depending on type and vendor, while SFP+ modules cost around $20 for 10G connectivity.

QSFP28 Pricing Overview

QSFP28 modules, designed for 100G Ethernet, vary widely in price based on reach, vendor, and specifications. Common market prices in 2026 are:

• Short-reach (SR4) modules: starting at $35 for third-party compatible options, delivering 100G over multimode fiber .
• Long-reach (LR4) modules: around $280 for OEM versions supporting 10 km single-mode fiber .
• High-end modules (ER4, ZR4): can reach several thousand dollars for OEM units, especially for extended reach up to 80 km . Third-party modules often meet the same optical and electrical specifications as OEM modules, including 100GBASE-SR4, LR4, CWDM4, ER4, or ZR4, but differences may exist in EEPROM coding, firmware, warranty, and vendor support . Typical power consumption ranges from 3.5W to 4.5W depending on reach and design .

SFP and SFP+ Pricing

• SFP modules: support lower speeds, typically up to 4.25 Gbps, and are widely used in legacy or low-bandwidth networks .
• SFP+ modules: standard for 10G Ethernet, costing around $20 per module, which equals $2 per Gbps . While QSFP28 has a higher upfront cost, it provides much lower bandwidth cost—for example, a $35 QSFP28 SR4 module delivers 100G, equating to $0.35 per Gbps, making it more cost-efficient for high-speed deployments .

Key Considerations

• Compatibility: Ensure modules match your switch platform and fiber type.
• Vendor choice: OEM modules offer official support, while third-party modules are more cost-effective.
• Deployment scale: Bulk purchases can significantly reduce per-Gbps cost.
• Future scalability: QSFP28 supports 100G and can be used in breakout configurations for 25G lanes, providing a smoother upgrade path compared to jumping from 10G to 100G . In summary, QSFP28 modules are ideal for high-speed, cost-efficient 100G networks, while SFP/SFP+ modules remain suitable for lower-speed or legacy deployments, with pricing reflecting both performance and vendor support considerations.