Cisco QSFP-200G-SR4-S Compatible 200G QSFP56 SR4 Transceiver Module
Built for hosts recognizing QSFP-200G-SR4-S, this HT-manufactured QSFP56 module delivers 200G transmission at 850nm. Its rated reach is 70m on OM3 / 100m on OM4, with MPO-12/UPC as the physical interface. The specifications and engineering guidance below support procurement teams match an equipment parts list to a clearly defined optical product, while keeping HT manufacture separate from the OEM cross-reference.
OEM Part Number: QSFP-200G-SR4-SHT Part Number: QSFP-SR4-200G
Product Highlights
- Compatible alternative to Cisco QSFP-200G-SR4-S
- 200G connectivity at 200Gbps
- Optical wavelength: 850nm
- Specified reach: 70m on OM3 / 100m on OM4
- MPO-12/UPC / MMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| Cisco Compatible | QSFP-200G-SR4-S |
|---|---|
| Manufacturer | HT |
| HT Part Number | QSFP-SR4-200G |
| Form Factor | QSFP56 |
| Max. Data Rate | 200Gbps |
| Wavelength | 850nm |
| Max. Cable Distance | 70m@OM3/100m@OM4 |
| Connector | MPO-12/UPC |
| Media | MMF |
| Transmitter Type | VCSEL 850nm |
| Receiver Type | PIN |
| TX Power | -3~3dBm |
| Minimum Receiver Power | -6.5dBm |
| Power Budget | 3.5dBm |
| Receiver Overload | 5dBm |
| Max. Power Consumption | 4.35W |
| Extinction Ratio | 3dB |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Modulation (Electrical) | 4x50G-PAM4 |
| Modulation (Optical) | 4x50G-PAM4 |
| CDR (Clock and Data Recovery) | TX & RX Built-in CDR |
| FEC Function | Support RS-FEC |
| Protocols | QSFP56 MSA, CMIS Rev 4.0, IEEE 802.3bs, SFF-8665, RoHS 10 |
| Application | 200G Ethernet, Data centers Interconnect, High performance computing |
| BER | 5E-10 |
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 MPO-12/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 200G interface configuration must match the remote equipment; sharing a QSFP56 housing alone does not make two transceiver types interoperable.
For this multimode module, confirm fiber grade, modal bandwidth and total loss before commissioning. The 70m on OM3 / 100m on OM4 figure applies only under suitable cabling conditions. Inspect every MPO-12/UPC mating point and match the remote optical standard.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -3~3dBm; the stated optical power budget is 3.5dBm. A sound acceptance record includes link state, diagnostic temperature, supply voltage and transmit or receive levels where the host exposes them. Compare the readings with the stated ranges rather than treating any received light as proof of adequate margin. Persistent alarms or borderline values should trigger an end-face and complete-channel inspection. 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.
Procurement and Asset Identification
A useful purchase order identifies the host platform, expected OEM code and optical standard separately. This prevents a module with the same housing but another wavelength, reach or identification profile from being substituted. For mixed deployments, keep one order line per OEM reference and reconcile each received unit with its intended port. For this model, the principal parameters are data rate 200Gbps, wavelength 850nm, rated reach 70m on OM3 / 100m on OM4.
Cisco Compatibility and Factory Testing
Compatibility testing for QSFP-200G-SR4-S 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.
Ordering Information
Use QSFP-200G-SR4-S as the compatibility cross-reference and QSFP-SR4-200G 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.
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.
Frequently Asked Questions
Is this an original Cisco transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies QSFP-200G-SR4-S, not an original Cisco-branded module.
Which fiber and connector are required?
Use MPO-12/UPC with MMF. The specified maximum reach is 70m on OM3 / 100m 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.
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.