NVIDIA/Mellanox SFP-10GLRM-31-I Compatible 10G SFP+ LRM Transceiver Module

NVIDIA/Mellanox SFP-10GLRM-31-I Compatible 10G SFP+ LRM Transceiver Module

The SFP-10GLRM-31-I compatible module serves equipment requiring a 10G SFP+ interface with 1310nm optics and a 220m on OM3 / 1.4km on SMF rating. Connection is through Duplex LC. Product data, application guidance and factory verification are presented together to support installers plan a serviceable optical connection at the equipment rack.

OEM Part Number: SFP-10GLRM-31-IHT Part Number: SFP-10GLRM-31-I

Product Highlights

  • Compatible alternative to NVIDIA/Mellanox SFP-10GLRM-31-I
  • 10G connectivity at 10.3125Gbps
  • Optical wavelength: 1310nm
  • Specified reach: 220m on OM3 / 1.4km on SMF
  • Duplex LC / MMF/SMF interface
  • Digital diagnostic monitoring: Supported
  • Operating temperature: -40 to 85°C (-40 to 185°F)

Specifications

HT Part NumberSFP-10GLRM-31-I
ManufacturerHT
Form FactorSFP+
Max. Data Rate10.3125Gbps
Wavelength1310nm
Max. Transmission Distance220m@OM3/1.4km@SMF
ConnectorDuplex LC
MediaMMF/SMF
Transmitter TypeFP 1310nm
Receiver TypePIN
TX Power-8.2~0.5dBm
Receiver Sensitivity<-14.4dBm
Power Budget6.2dB
Receiver Overload0.5dBm
Max. Power Consumption≤1W
Extinction Ratio>3.5dB
DDM/DOMSupported
Operating Temperature-40 to 85°C (-40 to 185°F)
Core Size50/125µm@OM3 MMF, 9/125μm@SMF
ModulationNRZ
ProtocolsIEEE 802.3ae, SFF-8472, SFF-8431, SFF-8432, SFP+ MSA Compliant, CPRI, eCPRI

Rack Integration and Service Access

Plan the fiber route before removing connector protection. The patch lead should follow its manager without pulling on the transceiver, while leaving space to release the latch and service adjacent ports. Protect the end face until final connection and avoid tight bends immediately behind warm exhaust air. For this model, the principal parameters are data rate 10.3125Gbps, wavelength 1310nm, rated reach 220m on OM3 / 1.4km on SMF.

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.

The industrial temperature rating makes this version appropriate for controlled outdoor cabinets, transport nodes and other installations exposed to wider ambient temperature variation. Adequate airflow, protected cable routing and host-platform temperature limits still apply.

The multimode channel should use the fiber grade associated with the stated 220m on OM3 / 1.4km on SMF reach. Keep the Duplex LC end faces clean and avoid tight bends. Different multimode standards are not interchangeable merely because they share a connector.

Optical Acceptance, Diagnostics and Handling

For this model, the specified transmit-power range is -8.2~0.5dBm; receiver sensitivity is <-14.4dBm; the stated optical power budget is 6.2dB. 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.

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.

NVIDIA/Mellanox Compatibility and Factory Testing

The module is checked for host recognition as SFP-10GLRM-31-I, link establishment and diagnostic reporting. Physical cage fit alone is not treated as evidence of compatibility. 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 SFP-10GLRM-31-I, not an original NVIDIA/Mellanox-branded module.

Which fiber and connector are required?

Use Duplex LC with MMF/SMF. The specified maximum reach is 220m on OM3 / 1.4km on SMF, 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.

Ordering Information

Quote HT part number SFP-10GLRM-31-I together with OEM reference SFP-10GLRM-31-I and quantity. Add the host model and software release when pre-order verification is required. Neutral labels, customer packaging and project-specific compatibility review are available on request.

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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