HPE Aruba S3N93A Compatible 400G QSFP-DD DR4 Transceiver Module
The S3N93A compatible module serves equipment requiring a 400G QSFP-DD interface with 1310nm optics and a 500m rating. Connection is through MPO-12/APC. Product data, application guidance and factory verification are presented together to support project teams keep OEM references, delivery records and port schedules aligned.
OEM Part Number: S3N93AHT Part Number: QDD-DR4-400G-SI
Product Highlights
- Compatible alternative to HPE Aruba S3N93A
- 400G connectivity at 425Gbps (4x106.25Gb/s)
- Optical wavelength: 1310nm
- Specified reach: 500m
- MPO-12/APC / SMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| HPE Aruba Compatible | S3N93A |
|---|---|
| Manufacturer | HT |
| HT Part Number | QDD-DR4-400G-SI |
| Form Factor | QSFP-DD |
| Max. Data Rate | 425Gbps (4x106.25Gb/s) |
| Wavelength | 1310nm |
| Max. Cable Distance | 500m |
| Connector | MPO-12/APC |
| Media | SMF |
| Modulation Format | PAM4 |
| Receiver Type | PIN |
| TX Power | -2.9~4.0dBm |
| Minimum Receiver Power | -5.9dBm |
| Power Budget | 3dB |
| Receiver Overload | 4.0dBm |
| Max. Power Consumption | 9W |
| Extinction Ratio | 3.5dB |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Modulation (Electrical) | 8x50G-PAM4 |
| Modulation (Optical) | 4x100G-PAM4 |
| BER | 1E-12 |
| Inbuilt FEC | No |
| MTBF | 4928939 Hours (@40°C, 60%CL)2544866 Hours (@40°C, 90%CL)3968949 Hours (@50°C, 60%CL)1976795 Hours (@50°C, 90%CL) |
| Application | 400G Ethernet |
| Protocols | QSFP-DD MSA HW Rev 5.1, QSFP-DD CMIS Rev 5.0, IEEE 802.3bs |
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 425Gbps (4x106.25Gb/s), wavelength 1310nm, rated reach 500m.
HPE Aruba Compatibility and Factory Testing
The module is checked for host recognition as S3N93A, 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.
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 400G interface configuration must match the remote equipment; sharing a QSFP-DD housing alone does not make two transceiver types interoperable.
Before commissioning, measure the complete single-mode channel against the stated budget for 500m. Inspect every MPO-12/APC connection and record diagnostic power where supported. Both ends must agree on rate, wavelength and optical standard.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -2.9~4.0dBm; the stated optical power budget is 3dB. 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.
Frequently Asked Questions
Is this an original HPE Aruba transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies S3N93A, not an original HPE Aruba-branded module.
Which fiber and connector are required?
Use MPO-12/APC with SMF. The specified maximum reach is 500m, 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
When ordering, specify S3N93A, QDD-DR4-400G-SI, quantity and intended host platform. Project labels can repeat these details for receiving and asset records. 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 S3N93A 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.
