H3C QSFP-LX4-100G Compatible 100G QSFP28 LX4 Transceiver Module

H3C QSFP-LX4-100G Compatible 100G QSFP28 LX4 Transceiver Module

This H3C QSFP-LX4-100G compatible transceiver provides 100G connectivity in a hot-swappable QSFP28 package. Its optical design operates at 1271nm,1291nm,1311nm,1331nm for up to 2km on SMF / 100m on OM3 MMF, using Duplex LC. Complete parameters and related OEM references help data-center designers evaluate optical reach, rack integration and host compatibility together.

OEM Part Number: QSFP-LX4-100GHT Part Number: QSFP-LX4-100G

Product Highlights

  • Compatible alternative to H3C QSFP-LX4-100G
  • 100G connectivity at 103.12Gbps (4x 25.78GGbps)
  • Optical wavelength: 1271nm,1291nm,1311nm,1331nm
  • Specified reach: 2km on SMF / 100m on OM3 MMF
  • Duplex LC / SMF/MMF interface
  • Digital diagnostic monitoring: Supported
  • Operating temperature: 0 to 70°C (32 to 158°F)

Specifications

HT Part NumberQSFP-LX4-100G
ManufacturerHT
Form FactorQSFP28
Max. Data Rate103.12Gbps (4x 25.78GGbps)
Wavelength1271nm,1291nm,1311nm,1331nm
Max. Cable Distance2km@SMF/100m@OM3 MMF
ConnectorDuplex LC
MediaSMF/MMF
Transmitter TypeCWDM4 DFB
Receiver TypePIN
TX Power-3~4.5dBm
Minimum Receiver Power-7.3dBm
Power Budget4.3dB
Receiver Overload4.5dBm
Power Consumption≤4.5W
Extinction Ratio>3.5dB
DDM/DOMSupported
Commercial Temperature Range0 to 70°C (32 to 158°F)
Modulation (Electrical)4x 25G-NRZ
Modulation (Optical)4x 25G-NRZ
Inbuilt FECYes
Packaging TechnologyCOB (Chip on Board) Packaging
ProtocolsIEEE Std 802.3bm-2015, SFF-8665 Rev 1.9, SFF-8636 Rev 2.10a, SFF-8679 Rev 1.8

Applications and Optical Link Design

Typical deployments include switch-to-switch, switch-to-server and aggregation links inside a data hall or between adjacent equipment rooms. The Duplex LC interface connects to the specified multimode cabling, and the stated reach depends on fiber grade and link loss. Keep this interface on the matching multimode optical standard rather than connecting it directly to a single-mode wavelength or reach variant.

Before deployment, check the host port type, supported data rate and firmware requirements. The 100G interface configuration must match the remote equipment; sharing a QSFP28 housing alone does not make two transceiver types interoperable.

The multimode channel should use the fiber grade associated with the stated 2km on SMF / 100m on OM3 MMF reach. Keep the Duplex LC end faces clean and avoid tight bends. Different multimode standards are not interchangeable merely because they share a connector.

Quality Assurance and Packaging

Before packing, the module receives interface inspection, identification and link checks. Protective packaging avoids pressure on the connector and latch. Customer references, rack groups and project packing lists can be added for volume orders.

Optical Acceptance, Diagnostics and Handling

For this model, the specified transmit-power range is -3~4.5dBm; the stated optical power budget is 4.3dB. During commissioning, record the host diagnostic readings after the link has stabilized and compare them with those limits. DOM values are useful operational indicators, but they do not replace calibrated optical measurements when a link is marginal. Investigate unexpected loss through connector inspection, cleaning and a channel measurement before replacing the module. Diagnostic monitoring is listed as Supported. Before every insertion, keep dust caps in place until the patch lead is ready, avoid touching the optical end face and use an appropriate inspection and cleaning procedure. Do not look into an active optical interface.

Data-Center Optical Design and Airflow

Select the module by optical standard, reach and rack layout. Check the complete fiber channel, including panels and connectors, and keep dense bundles from blocking front-panel airflow. Account for listed power consumption and preserve enough space to remove a module without disturbing adjacent links. For this model, the principal parameters are data rate 103.12Gbps (4x 25.78GGbps), wavelength 1271nm,1291nm,1311nm,1331nm, rated reach 2km on SMF / 100m on OM3 MMF.

Ordering Information

When ordering, specify QSFP-LX4-100G, QSFP-LX4-100G, quantity and intended host platform. Project labels can repeat these details for receiving and asset records. Neutral labels, customer packaging and project-specific compatibility review are available on request.

H3C Compatibility and Factory Testing

Compatibility testing for QSFP-LX4-100G combines identification with a live link and available transmit, receive and alarm information. Connector condition is inspected separately. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.

Frequently Asked Questions

Is this an original H3C transceiver?

No. It is an HT-manufactured compatible alternative for equipment that specifies QSFP-LX4-100G, not an original H3C-branded module.

Which fiber and connector are required?

Use Duplex LC with SMF/MMF. The specified maximum reach is 2km on SMF / 100m on OM3 MMF, subject to fiber quality and total link loss.

Can it be mixed with another wavelength or reach version?

Only when the two ends share the same optical standard, wavelength plan and supported data rate. Check the exact part numbers and link budget rather than relying only on the module form factor.

Shipping and Lead Time

Standard configurations normally ship within one to three working days, with production lead times confirmed for larger quantities. International courier, air freight and sea freight are available; customer courier accounts and nominated forwarders are accepted.


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