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Intel E40GQSFPSR Compatible 40G QSFP+ SR4 Transceiver Module

Intel E40GQSFPSR Compatible 40G QSFP+ SR4 Transceiver Module

This Intel E40GQSFPSR compatible transceiver provides 40G connectivity in a hot-swappable QSFP+ package. Its optical design operates at 850nm for up to 150m on OM4 / 100m on OM3, using MTP/MPO-12 Male. Complete parameters and related OEM references help network teams verify host acceptance as well as physical interface fit.

OEM Part Number: E40GQSFPSRHT Part Number: QSFP-SR4-40G

Product Highlights

  • Compatible alternative to Intel E40GQSFPSR
  • 40G connectivity at 41.25Gbps
  • Optical wavelength: 850nm
  • Specified reach: 150m on OM4 / 100m on OM3
  • MTP/MPO-12 Male / MMF interface
  • Operating temperature: 0 to 70°C (32 to 158°F)
  • Factory compatibility verification and optical performance testing before shipment

Specifications

Intel CompatibleE40GQSFPSR
ManufacturerHT
HT Part NumberQSFP-SR4-40G
Form FactorQSFP+
Max. Data Rate41.25Gbps
Wavelength850nm
Max. Transmission Distance150m@OM4/100m@OM3
ConnectorMTP/MPO-12 Male
Cable TypeMMF
Transmitter TypeVCSEL
Receiver TypePIN
TX Power-7.6~2.4dBm
Receiver Sensitivity<-5.4dBm
Digital Optical MonitoringYes
Receiver Overload2.4dBm
Max. Power Consumption≤1.5W
Core Size50um
Extinction Ratio>3dB
ModulationNRZ
Host FECSupported
Modal Bandwidth2000 (OM3) MHz*km4700 (OM4) MHz*km
Operating Temperature0 to 70°C (32 to 158°F)
ProtocolsIEEE 802.3 40GBASE-SR4, SFF-8436

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 MTP/MPO-12 Male 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 40G interface configuration must match the remote equipment; sharing a QSFP+ housing alone does not make two transceiver types interoperable.

The multimode channel should use the fiber grade associated with the stated 150m on OM4 / 100m on OM3 reach. Keep the MTP/MPO-12 Male end faces clean and avoid tight bends. Different multimode standards are not interchangeable merely because they share a connector.

Intel Compatibility and Factory Testing

Factory verification starts with the expected E40GQSFPSR 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.

Optical Acceptance, Diagnostics and Handling

For this model, the specified transmit-power range is -7.6~2.4dBm; receiver sensitivity is <-5.4dBm. 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. 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.

Interoperability and Host Configuration

Check three layers before deployment: host acceptance of the module identity, port support for the stated rate, and a matching optical standard at the remote interface. For breakout operation, confirm lane configuration too. Similar-looking cages can behave differently across speeds and firmware settings. For this model, the principal parameters are data rate 41.25Gbps, wavelength 850nm, rated reach 150m on OM4 / 100m on OM3.

Ordering Information

Quote HT part number QSFP-SR4-40G together with OEM reference E40GQSFPSR 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.

Quality Assurance and Packaging

Each E40GQSFPSR compatible module is inspected, powered up and functionally checked before protective packing. Dust caps and individual trays shield the interface during transport. Customer references, rack groups and project packing lists can be added for volume orders.

Frequently Asked Questions

Is this an original Intel transceiver?

No. It is an HT-manufactured compatible alternative for equipment that specifies E40GQSFPSR, not an original Intel-branded module.

Which fiber and connector are required?

Use MTP/MPO-12 Male with MMF. The specified maximum reach is 150m on OM4 / 100m on OM3, 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.


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