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Compatible 100G QSFP28 Transceivers: SR4, LR4 and CWDM4

QSFP28 transceiver options for 100G: SR4, LR4, CWDM4 and BiDi, with compatibility validated by port and firmware on 9 network platforms. Typical dispatch in 48h*.

What is a QSFP28 transceiver?

A QSFP28 transceiver (100G QSFP28 module) is the four-lane 25G optic for 100 Gbps (100GbE) links, defined by IEEE 802.3bm. It is the dominant form factor in data center spine-leaf architectures, data center interconnect and backbone, and it can also operate as 4 links of 25G (4×25G breakout).

At EON Technology we offer them multivendor, with compatibility validated by model, firmware, port and optical part number, so they integrate into infrastructures from several manufacturers without depending on a single supplier.

QSFP28 variants: SR4, LR4 and CWDM4

  • 100GBASE-SR4 (MPO, multimode): short data center distances (~70–100 m) with an MPO/MTP connector.
  • 100GBASE-CWDM4 / LR4 (duplex, single-mode): 4 wavelengths over one fiber pair, LC connector; CWDM4 up to 2 km and LR4 up to 10 km.
  • BiDi and single-lane QSFP28 (DR/FR): alternatives depending on the architecture and the available fiber.

Every part number includes DDM/DOM for real-time monitoring of optical power, temperature and voltage.

Why choose EON QSFP28 transceivers

  • Multivendor integration with validated compatibility; if your platform requires a specific profile, we adapt and validate compatibility through transceiver recoding with 90-day service coverage.
  • Significant savings compared with the original OEM module price, while keeping the optical performance.
  • 1- to 5-year product warranty and engineering support before and after purchase. EON serves Latin America and Spain from a centralized operation in Colombia.
  • Typical dispatch in 48h*. *Subject to inventory, destination country, carrier, customs, the customer’s import process and third-party logistics conditions.

Need SR4, CWDM4, LR4 or a 4×25G breakout configuration? Check the compatibility matrix or request a quote and we validate the optical part number for your equipment.

Available models

Validated compatibility

Compatibility validated by model, firmware, port and optical part number.

Frequently asked questions

What is a 100G QSFP28 module?

The QSFP28 is a four-lane 25G transceiver for 100 Gbps (100GbE) links, under IEEE 802.3bm. It is the dominant form factor in data center spine-leaf, interconnect and backbone, and it is hot-swappable.

What are the 100G QSFP28 variants and their distances?

The most common are 100GBASE-SR4 (multimode, MPO, ~70–100 m), CWDM4 (single-mode duplex, 2 km), LR4 (single-mode duplex, 10 km) and ER4 (40 km). BiDi and single-lane (DR/FR) variants also exist depending on the architecture.

Can I use a QSFP28 port as 4×25G?

Yes. With a breakout cable, a 100G QSFP28 port can be split into 4 SFP28 links of 25G (4×25G), as long as the equipment and firmware support it. We validate the configuration by model and port.

Are EON QSFP28 transceivers compatible with my equipment?

Compatibility is validated by model, firmware, port and optical part number on the main network platforms (Cisco, Juniper, Arista, HPE, Dell, Huawei, MikroTik, Extreme and Fortinet). If your equipment requires a specific profile, we offer transceiver recoding with 90-day service coverage.

Ready to validate with a proof of concept?

Send us your equipment list and receive transceivers with validated compatibility and engineering support before and after purchase.