QSFP28-100G-SR4, Huawei 100G Optical Transceiver, 850nm/100m/MPO

The Huawei Compatible QSFP28-100G-SR4 is a high-performance, hot-pluggable optical transceiver module designed for short-range data transmission in 100 Gigabit Ethernet (100GbE) networks, high-performance computing (HPC) clusters, and enterprise data centers. Operating over a nominal wavelength of 850nm via multi-mode fiber (MMF), this module delivers a dependable transmission distance of up to 70 meters using OM3 fiber or up to 100 meters using OM4/OM5 infrastructure.

Equipped with a standard MPO-12 male optical connector interface and integrated Digital Optical Monitoring (DOM/DDM), this transceiver offers seamless compatibility with Huawei switches, routers, and network interface cards (NICs). It delivers high density, low power consumption (typically less than 2.5W), and rock-solid reliability for modern optical interconnects.

Figure 1 shows the front panel of QSFP28-100G-SR4.

The Huawei compatible QSFP28-100G-SR4 represents the pinnacle of high-density short-reach optical interconnect engineering. The term QSFP28 (Quad Small Form-factor Pluggable 28) refers to the standardized industry form factor optimized for 100G data rates. The SR4 designation indicates "Short Range" architecture utilizing 4 independent transmit and receive channels (lanes).

Instead of routing data down a single fiber strand, this module splits the aggregate 100 Gbps stream into four separate lines, each operating at a line rate of 25.78125 Gbps using NRZ (Non-Return-to-Zero) modulation. The interface requires a 12-fiber MPO/MTP connector (specifically utilizing 4 lanes for transmission, 4 lanes for receiving, and leaving the center 4 fibers unused), making it the definitive hardware choice for migrating local networks from legacy 10G/40G structures into high-capacity 100G pipelines.

A primary barrier when deploying third-party optical modules is software locking or strict hardware validation protocols inside enterprise operating systems like Huawei VRP (Versatile Routing Platform). Our Huawei compatible transceivers undergo rigorous hardware verification and EEPROM internal coding specialization.

When inserted into high-end switches like the Huawei CloudEngine series, the host system instantly recognizes the module, reads its internal parameter tables flawlessly, and populates standard interface commands without triggering "unsupported transceiver" warnings or interface port shutdown states.

Thermal management is a critical operating cost metric for large-scale data center infrastructures. The QSFP28-100G-SR4 architecture is engineered around highly efficient 850nm VCSEL (Vertical-Cavity Surface-Emitting Laser) arrays and specialized PIN photodetector chipsets. This allows the transceiver to function under a highly optimized power envelope, maintaining a typical power dissipation of less than 2.5 Watts across its entire operating thermal scope, directly translating to reduced cooling overhead and lower electrical operational expenses (OpEx).

Real-time network maintenance requires granular visibility into optical physical layer variables. This module incorporates standard DOM (Digital Optical Monitoring) data feeds compliant with SFF-8636 industry agreements. Network technicians can monitor critical real-time diagnostics directly via the switch CLI, including:

• Optical Transmit (Tx) Power levels per channel

• Optical Receive (Rx) Power sensitivity metrics per channel

• Internal module operating temperature

• Laser bias current distributions

• Real-time supply voltage tracking

To establish error-free optical link connectivity across your network rows, it is crucial to match the transceiver with correct fiber cabling specifications:

• The MPO-12 Connector: The transceiver houses an internal male MPO-12 optical receptacle containing alignment pins. Therefore, the fiber patch cable must terminate in a Female MPO-12/MTP-12 connector (without pins).

• Fiber Glass Grade and Distance Scaling:

  • Deploy OM3 Multimode Fiber (MMF) to achieve reliable 100G transmission distances up to 70 meters.

  • Deploy OM4 or OM5 Multimode Fiber (MMF) to unlock full operational reach capabilities up to 100 meters.

• Optical Polarity: Standard 100G parallel optics deployments require Type-B MPO polarity cabling to correctly cross-connect the Transmit (Tx) ports of Switch A with the corresponding Receive (Rx) ports of Switch B.

1. Carefully orient the QSFP28 module so that the integrated pull-tab alignment key lines up with the physical orientation slot of the host Huawei switch port.

2. Gently slide the transceiver into the open port until you hear a mechanical "click," indicating the unit is locked into the backplane cage securely.

3. Remove the protective rubber dust caps from both the transceiver optical window and the female MPO-12 patch cable. Inspect the fiber end-face with a fiber scope and clean if necessary.

4. Align the key of the female MPO connector with the transceiver slot and insert firmly. The link indicator LED on the host switch should transition to solid green within moments once optical handshakes complete.

Procurement managers frequently evaluate optical interconnect paths when designing 100G campus fabrics and server aggregations. The product matrix below outlines the performance characteristics of standard 100G QSFP28 options against the short-range SR4 module:

A: Yes, absolutely. Our Huawei compatible QSFP28-100G-SR4 modules are loaded with customized EEPROM system code configured specifically to match Huawei’s VRP software rules. When you deploy this module into a Huawei switch (such as the CloudEngine 6800 or 8800 series), it initializes natively. The switch registers it exactly like a branded original module, unlocking complete CLI integration, telemetry readouts, and error-free operation.

A: You must utilize a Multimode Fiber (MMF) patch cable (either OM3, OM4, or OM5 grade glass) terminated with a Female MPO-12 connector at the transceiver end. The female connector is required because our QSFP28 module features internal male alignment pins. For standard switch-to-switch connections, make sure you order a Type-B Polarity MPO cable to ensure proper transmitter-to-receiver lane mapping.

A: Yes. Because the 100GBASE-SR4 standard inherently relies on 4 individual parallel lanes running at 25.78 Gbps, you can easily execute a breakout configuration. By connecting a female MPO-12 to 4x Duplex LC multi-mode breakout harness cable, you can route the signals into four individual 25G SFP28 SR ports on downstream switches or network interface cards. You simply need to input the configuration command port split or breakout on your host switch interface port.

A: We back this optical transceiver with an industry-leading 3-Year Advanced Replacement Warranty. In the rare event that a module experiences optical degradation or internal component failure within this period, our technical logistics team coordinates a rapid product swap to minimize network downtime. Additionally, we provide lifetime engineering support, offering remote assistance for compatibility verification, DOM analytics troubleshooting, and breakout configuration questions.

A: MPO (Multi-Fiber Push On) is the generalized international industry standard name for this multi-fiber connector type. MTP® is a registered trademark brand owned by US Conec, representing an engineered, premium version of an MPO connector. MTP connectors are fully compatible with standard MPO interfaces but feature mechanical enhancements that reduce insertion loss, minimize fiber face wear, and optimize physical spring stability across high-density connection cycles.

A: Yes, this module is 100% hot-pluggable. You can insert or extract the transceiver from any operational Huawei switch port without turning off the system, interrupting neighboring ports, or triggering power disruptions on the system backplane. This allows you to scale up link capacity or replace hardware components during production hours without needing scheduled network downtime maintenance windows.

The Huawei Compatible QSFP28-100G-SR4 Optical Transceiver offers an exceptional combination of high performance, low power draw, and cost efficiency for short-range 100GbE applications. By matching true Huawei system compatibility with premium 850nm parallel optics architecture and integrated DOM diagnostics, this module provides enterprise and data center networks with an incredibly reliable, high-density fiber link foundation.