H3C QSFP-40G-BIDI-SR-MM850 Compatible 40G QSFP+ SR Transceiver Module
Built for hosts recognizing QSFP-40G-BIDI-SR-MM850, this HT-manufactured QSFP+ module delivers 40G transmission at 850/880/910/940nm. Its rated reach is 300m on OM3 / 400m on OM4, with Duplex LC/UPC as the physical interface. The specifications and engineering guidance below support project teams keep OEM references, delivery records and port schedules aligned, while keeping HT manufacture separate from the OEM cross-reference.
OEM Part Number: QSFP-40G-BIDI-SR-MM850HT Part Number: QSFP-BIDI-40G
Product Highlights
- Compatible alternative to H3C QSFP-40G-BIDI-SR-MM850
- 40G connectivity at 41.2Gbps (4x 10.3125Gbps)
- Optical wavelength: 850/880/910/940nm
- Specified reach: 300m on OM3 / 400m on OM4
- Duplex LC/UPC / MMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| HT Part Number | QSFP-BIDI-40G |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP+ |
| Max. Data Rate | 41.2Gbps (4x 10.3125Gbps) |
| Wavelength | 850/880/910/940nm |
| Max. Transmission Distance | 300m@OM3/400m@OM4 |
| Connector | Duplex LC/UPC |
| Cable Type | MMF |
| Transmitter Type | VCSEL |
| Receiver Type | PIN |
| TX Power | -7.5~3dBm |
| Receiver Sensitivity | <-9.1dBm |
| Power Budget | 1.6dB |
| Receiver Overload | 3.0dBm |
| Max. Power Consumption | ≤3.5W |
| Extinction Ratio | >2.0dB |
| DDM/DOM | Supported |
| Operating Temperature | 0 to 70°C (32 to 158°F) |
| CDR (Clock and Data Recovery) | TX & RX Built-in CDR |
| Packaging Technology | COB (Chip on Board) Packaging |
| Modulation Format | 4x10G-NRZ |
| Bit Error Ratio (BER) | 1E-12 |
| MTBF | 1,426,134 Hours |
| EMC (Electro Magnetic Compatibility) | Supported |
| Protocols | QSFP+ MSA, SWDM MSA, SFF-8636, IEEE 802.3ba, XLPPI electrical interface |
Project Documentation and Traceability
Large deployments are easier to audit when the order code, optical standard and endpoint record agree. Keep the OEM reference in the compatibility document and the HT part number on the packing list. Labels and carton groups can be arranged by rack or port plan so installers need not identify modules by appearance. For this model, the principal parameters are data rate 41.2Gbps (4x 10.3125Gbps), wavelength 850/880/910/940nm, rated reach 300m on OM3 / 400m on OM4.
H3C Compatibility and Factory Testing
Compatibility testing for QSFP-40G-BIDI-SR-MM850 combines identification with a live link and available transmit, receive and alarm information. Connector condition is inspected separately. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.
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/UPC 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 300m on OM3 / 400m on OM4 figure applies only under suitable cabling conditions. Inspect every Duplex LC/UPC mating point and match the remote optical standard.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -7.5~3dBm; receiver sensitivity is <-9.1dBm; the stated optical power budget is 1.6dB. 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. 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.
Frequently Asked Questions
Is this an original H3C transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies QSFP-40G-BIDI-SR-MM850, not an original H3C-branded module.
Which fiber and connector are required?
Use Duplex LC/UPC with MMF. The specified maximum reach is 300m on OM3 / 400m on OM4, 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 QSFP-40G-BIDI-SR-MM850 as the compatibility cross-reference and QSFP-BIDI-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.
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.
