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

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

The QSFP-LX4-100G compatible module is intended for Arista platforms requiring a 100G QSFP28 transceiver. It specifies wavelength 1271nm,1291nm,1311nm,1331nm, reach 2km on SMF / 100m on OM3 MMF with Duplex LC through SMF/MMF.

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

Product Highlights

  • Compatible alternative to Arista 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 Deployment

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.

Arista Compatibility and Testing

The module is programmed for equipment that recognizes the QSFP-LX4-100G part number. Before shipment, we check EEPROM identification, link establishment and diagnostic readouts, then verify transmit and receiver performance against the stated optical specifications. Host hardware and software revisions can affect third-party module acceptance, so customers can provide the switch model and software release for a compatibility check before ordering.

Ordering Information

Quote HT part number QSFP-LX4-100G together with OEM part number QSFP-LX4-100G and the required quantity. Standard modules use our factory label; neutral labels, customer-branded packaging and project-specific compatibility coding are available on request. For mixed-brand installations, select the corresponding brand-specific page instead of assuming one EEPROM version fits every platform.

Frequently Asked Questions

Is this an original Arista transceiver?

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

Quality Assurance and Packaging

Each unit undergoes optical performance checks, compatibility verification and visual inspection before packing. Modules are supplied in protective blister trays or anti-static packaging and then cartoned for transport. Custom labels and project packing lists can be added for volume orders.

Shipping and Lead Time

Standard products normally ship within one to three working days. Worldwide courier, air freight and sea freight options are available, and shipments can also be sent on your own courier account or delivered to an appointed forwarder.

 

Get a quick quote

Please write to sales@huihongfiber.com, we will reply as soon as possible.


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