QSFP-40G-PLR4Brocade QSFP-40G-PLR4 Compatible 40G QSFP+ PLR4 Transceiver Module
Built for hosts recognizing QSFP-40G-PLR4, this HT-manufactured QSFP+ module delivers 40G transmission at 1310nm. Its rated reach is 10km, with MTP/MPO-12 Male 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: QSFP-40G-PLR4HT Part Number: QSFP-PLR4-40G
Product Highlights
- Compatible alternative to Brocade QSFP-40G-PLR4
- 40G connectivity at 44.4Gbps (4x 11.1Gbps)
- Optical wavelength: 1310nm
- Specified reach: 10km
- MTP/MPO-12 Male / SMF interface
- Operating temperature: 0 to 70°C (32 to 158°F)
- Factory compatibility verification and optical performance testing before shipment
Specifications
| Brocade Compatible | QSFP-40G-PLR4 |
|---|---|
| Manufacturer | HT |
| HT Part Number | QSFP-PLR4-40G |
| Form Factor | QSFP+ |
| Max. Data Rate | 44.4Gbps (4x 11.1Gbps) |
| Wavelength | 1310nm |
| Max. Transmission Distance | 10km |
| Connector | MTP/MPO-12 Male |
| Media | SMF |
| Transimitter Type | 4x DFB |
| Receiver Type | PIN |
| TX Power | -6~-1dBm |
| Receiver Sensitivity | <-14.4dBm |
| Power Budget | 8.4dB |
| Receiver Overload | 0.5dBm |
| Max. Power Consumption | ≤2.5W |
| Core Size | 9um |
| Extinction Ratio | >4.5dB |
| Modulation | NRZ |
| Host FEC | Supported |
| Bit Error Ratio (BER) | 1E-12 |
| Operating Temperature | 0 to 70°C (32 to 158°F) |
| Protocols | 40G Ethernet, MSA Compliant |
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 40G interface configuration must match the remote equipment; sharing a QSFP+ housing alone does not make two transceiver types interoperable.
The single-mode link budget should include fiber attenuation, connectors, splices and panels over the intended 10km route. Keep the MTP/MPO-12 Male interface clean and match the remote optical standard. Consider receiver overload as well as insufficient power on short links.
Quality Assurance and Packaging
Each QSFP-40G-PLR4 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.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -6~-1dBm; receiver sensitivity is <-14.4dBm; the stated optical power budget is 8.4dB. 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.
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 44.4Gbps (4x 11.1Gbps), wavelength 1310nm, rated reach 10km.
Ordering Information
Quote HT part number QSFP-PLR4-40G together with OEM reference QSFP-40G-PLR4 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.
Brocade Compatibility and Factory Testing
The module is checked for host recognition as QSFP-40G-PLR4, 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 Brocade transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies QSFP-40G-PLR4, not an original Brocade-branded module.
Which fiber and connector are required?
Use MTP/MPO-12 Male with SMF. The specified maximum reach is 10km, 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.
