Intel E40GQSFPSR Compatible 40G QSFP+ SR4 Transceiver Module
The E40GQSFPSR compatible module serves equipment requiring a 40G QSFP+ interface with 850nm optics and a 150m on OM4 / 100m on OM3 rating. Connection is through MTP/MPO-12 Male. Product data, application guidance and factory verification are presented together to support field technicians install, maintain and identify the exact compatible module.
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 Compatible | E40GQSFPSR |
|---|---|
| Manufacturer | HT |
| HT Part Number | QSFP-SR4-40G |
| Form Factor | QSFP+ |
| Max. Data Rate | 41.25Gbps |
| Wavelength | 850nm |
| Max. Transmission Distance | 150m@OM4/100m@OM3 |
| Connector | MTP/MPO-12 Male |
| Cable Type | MMF |
| Transmitter Type | VCSEL |
| Receiver Type | PIN |
| TX Power | -7.6~2.4dBm |
| Receiver Sensitivity | <-5.4dBm |
| Digital Optical Monitoring | Yes |
| Receiver Overload | 2.4dBm |
| Max. Power Consumption | ≤1.5W |
| Core Size | 50um |
| Extinction Ratio | >3dB |
| Modulation | NRZ |
| Host FEC | Supported |
| Modal Bandwidth | 2000 (OM3) MHz*km4700 (OM4) MHz*km |
| Operating Temperature | 0 to 70°C (32 to 158°F) |
| Protocols | IEEE 802.3 40GBASE-SR4, SFF-8436 |
Field Installation and Maintenance
Inspect the connector and patch lead before installation, then support the fiber without pulling on the module housing. Release the latch properly during maintenance and keep dust protection on unused interfaces. If a module is removed for later use, retain its part-number label and record its original port. For this model, the principal parameters are data rate 41.25Gbps, wavelength 850nm, rated reach 150m on OM4 / 100m on OM3.
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.
For this multimode module, confirm fiber grade, modal bandwidth and total loss before commissioning. The 150m on OM4 / 100m on OM3 figure applies only under suitable cabling conditions. Inspect every MTP/MPO-12 Male mating point and match the remote optical standard.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -7.6~2.4dBm; receiver sensitivity is <-5.4dBm. Digital diagnostics make later maintenance easier when baseline values are captured at installation. Save the initial readings with the port and OEM reference, then investigate meaningful changes rather than reacting to a single transient value. Diagnostic support depends on the host as well as the module, so unavailable fields should be confirmed with the platform documentation. 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.
Intel Compatibility and Factory Testing
The module is checked for host recognition as E40GQSFPSR, 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 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.
Ordering Information
Use E40GQSFPSR as the compatibility cross-reference and QSFP-SR4-40G 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.
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.
