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NVIDIA/Mellanox SFP1G-ZX-55 Compatible 1G SFP Transceiver Module

NVIDIA/Mellanox SFP1G-ZX-55 Compatible 1G SFP Transceiver Module

Built for hosts recognizing SFP1G-ZX-55, this HT-manufactured SFP module delivers 1G transmission at 1550nm. Its rated reach is 80km, with Duplex LC as the physical interface. The specifications and engineering guidance below support high-density deployments balance optical performance, port access and thermal planning, while keeping HT manufacture separate from the OEM cross-reference.

OEM Part Number: SFP1G-ZX-55HT Part Number: SFP1G-ZX-55

Product Highlights

  • Compatible alternative to NVIDIA/Mellanox SFP1G-ZX-55
  • 1G connectivity at 1.25Gbps
  • Optical wavelength: 1550nm
  • Specified reach: 80km
  • Duplex LC / SMF interface
  • Operating temperature: 0 to 70°C (32 to 158°F)
  • Factory compatibility verification and optical performance testing before shipment

Specifications

HT Part NumberSFP1G-ZX-55
ManufacturerHT
Form FactorSFP
Max. Data Rate1.25Gbps
Wavelength1550nm
Max. Cable Distance80km
ConnectorDuplex LC
Optical ComponentsDFB 1550nm
MediaSMF
DOM SupportYes
TX Power0~5dBm
Receiver Sensitivity< -24dBm
Commercial Temperature Range0 to 70°C (32 to 158°F)
ProtocolsSFF-8472 MSA Compliant, IEEE 802.3ah-2004

Applications and Optical Link Design

Use this module for equipment interconnection over the specified single-mode fiber plant, including enterprise backbone, campus, metro or data-center interconnect links according to its rated distance. Confirm that both ends use the same optical standard and wavelength plan, and allow for connector, splice and patch-panel loss within the stated power budget.

Before deployment, check the host port type, supported data rate and firmware requirements. The 1G interface configuration must match the remote equipment; sharing a SFP housing alone does not make two transceiver types interoperable.

For this 1550nm interface, verify channel spacing and filter compatibility. Passive filters add loss even without active equipment, so assess 80km using the complete channel rather than fiber distance alone.

Quality Assurance and Packaging

Quality control covers the optical or electrical interface, host identification and operating link. The verified unit is then individually protected and cartoned. 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 0~5dBm; receiver sensitivity is < -24dBm. A sound acceptance record includes link state, diagnostic temperature, supply voltage and transmit or receive levels where the host exposes them. Compare the readings with the stated ranges rather than treating any received light as proof of adequate margin. Persistent alarms or borderline values should trigger an end-face and complete-channel inspection. 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.

High-Density Port and Thermal Planning

In a densely populated chassis, connector access and airflow form part of the optical-link design. Confirm that neighboring modules and patch leads leave room for latch operation, and include listed power consumption in the host thermal budget. Assess port density together with fiber management. For this model, the principal parameters are data rate 1.25Gbps, wavelength 1550nm, rated reach 80km.

Ordering Information

Use SFP1G-ZX-55 as the compatibility cross-reference and SFP1G-ZX-55 as the HT ordering identity. Keep other reaches or wavelength directions on separate order lines. Neutral labels, customer packaging and project-specific compatibility review are available on request.

NVIDIA/Mellanox Compatibility and Factory Testing

Factory verification starts with the expected SFP1G-ZX-55 identity and finishes with an operating host link. EEPROM data, diagnostic visibility and the stated optical parameters are assessed together. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.

Frequently Asked Questions

Is this an original NVIDIA/Mellanox transceiver?

No. It is an HT-manufactured compatible alternative for equipment that specifies SFP1G-ZX-55, not an original NVIDIA/Mellanox-branded module.

Which fiber and connector are required?

Use Duplex LC with SMF. The specified maximum reach is 80km, 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.

Singapore Fiber Optics

Fiber Optic Singapore

Singapore Service center: Singapore 567711

Factory in Asia: Shangxue Industrial Area, Shenzhen

Products Datasheet

Our full product range is available as PDF datasheets for download.

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Customer Support

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