| NO. | Item | Specification |
| 1 | Speed | 400G |
| 2 | Wavelength | 1271nm, 1291nm, 1311nm, 1331nm |
| 3 | Max Distance | 10km |
| 4 | Connector | Duplex LC |
| 5 | Fiber Type | Single-Mode Fiber (SMF) |
| NO. | Brand | Compatible P/N | Remarks |
| 1 | Cisco | QDD-400G-LR4-S | |
| 2 | Arista | QDD-400G-LR4 | |
| 3 | Dell | 400G-Q56-DD-LR4 | |
| 4 | H3C | QSFPDD-400G-LR4-WDM1300-DC | |
| 5 | HPE Aruba | S3N96A | |
| 6 | Juniper | QDD-400G-LR4-10 |
This 400G transceiver is 100% compatible with HPE Aruba’s high-density 400G switching platforms running ArubaOS-CX. It integrates seamlessly into platforms including:
Aruba CX 10000 Series Distributed Services Switches:
Select 400G uplink environments requiring high-density QSFP-DD interfaces.
Aruba CX 8400 Series Core & Aggregation Switches:
Supported across 400G line cards and high-speed modular fabric interfaces.
Aruba CX 8360 / 9300 Series High-Performance Switches:
Aruba CX 9300-32D (32-port 400G QSFP-DD switch)
HPE FlexFabric & ProLiant Server Environments:
Compatible with select HPE storage and compute networking line cards utilizing qualified QSFP-DD 400G ports.
The HPE Aruba® S3N96A is an enterprise-grade, high-performance 400G optical transceiver, engineered for long-reach data transmission within scale-out data centers and campus networks, its key applications include:
Aruba CX Spine-Leaf Architectures: Connects tier-1 spine and tier-2 leaf switches to sustain massive East-West traffic demands driven by virtualized workloads, cloud computing, and AI infrastructure.
Campus & Core Aggregation: Bridges the gap between core and aggregation layer switches in large enterprise networks or universities requiring robust, low-latency 400G line-rate backbones.
Long-Reach Data Center Interconnect (DCI): Establishes high-capacity, direct fiber links between localized data center facilities up to 10km apart over single-mode fiber without extra amplification.
High-Performance Edge Routing: Optimizes enterprise edge and cloud-edge boundaries to handle massive data distribution and multi-gigabit user aggregation.
| HPE Aruba Compatible | S3N96A | Vendor Name | HYTOPTODEVICE |
| Form Factor | QSFP-DD | Max Data Rate | 425Gbps |
| Wavelength | 1271nm, 1291nm, 1311nm, 1331nm | Max Distance | 10km |
| Modulation Format | PAM4 | Host Required | FEC |
| Connector | Duplex LC | Voltage Supply | 3.3V |
| Cable Type | SMF | DDM Support | Yes |
| Transmitter Type | CWDM EML | Receiver Type | PIN |
| TX Power | -3.3~+3.5dBm | Receiver Sensitivity | < -7.7dBm |
| Operation Temperature | 0 to 70°C (32 to 158°F) | Maximum Power | < 12W |
| Protocols | QSFP-DD MSA, | Application | 400G Ethernet, Data Center Interconnect, Infiniband Interconnects |
| 100G Lambda MSA 400G-FR4 |



Q1: What is the maximum reach of the HPE Aruba S3N96A? A1: This optical transceiver features long-reach transmission, supporting optical links up to 10km over standard G.652 single-mode fiber (SMF).
Q2: What wavelengths does the S3N96A use? A2: It utilizes four CWDM grid optical wavelengths (1271, 1291, 1311, 1331nm) to transport distance up to 10km with SMF.
Q3: What type of fiber connector for the HPE Aruba S3N96A? A3: It uses a standard duplex LC. You will need a single-mode duplex LC-to-LC fiber optic patch cable to establish the connection.
Q4: Does the Aruba S3N96A use PAM4 modulation? A4: Yes, It uses advanced OIF 56G PAM4 (Pulse Amplitude Modulation 4-level) technology, converting 8 channels of 50Gbps electrical signals into 4 channels of 100Gbps optical signals, realizing the high speed 400G network transmission.
Q5: Is Digital Diagnostics Monitoring (DDM/DOM) supported for the HPE Aruba S3N96A? A5: Yes. it supports real-time DDM/DOM, allowing network administrators to monitor optical launch/receive power, temperature, voltage, and laser bias current.
Q6: What is the operating temperature range of this transceiver? A6: This is a commercial-grade module designed to operate reliably within a standard operating case temperature range of 0 to 70°C (32 to 158°F)
Q7: Can I plug a HPE Aruba compatible transceiver S3N96A into a standard 100G QSFP28 port? A7: No. The QSFP-DD form factor utilizes a higher density configuration with a dual-row pinout. It is mechanically and electrically incompatible with legacy 100G QSFP28 ports.
Q8: Is Forward Error Correction (FEC) required for this 400G module? A8: Yes. Per the IEEE 802.3bs standard, host platforms must enable KP4 FEC (Forward Error Correction) on the port to ensure low Bit Error Rates (BER) and link stability over the 10km distance.
Q9: Will using a third-party compatible module void my HPE hardware warranty? A9: No. Under consumer protection laws like the Magnuson-Moss Warranty Act, OEMs cannot void your system warranty simply for using third-party peripherals. Our modules are programmed with correct EEPROM signatures to avoid "Non-HPE transceiver" system warnings.
Q10: How do you verify compatibility and quality prior to shipping? A10: Each HPE Aruba S3N96A optical module undergoes strict 100% hardware testing on original equipments.
Q11:Is the S3N96A hot-swappable?A11:Yes,it is hot-pluggable, hot Pluggable QSFP-DD MSA Compliant.you can plug or unplug the optical module, while the device is powered on, without any damage
Q12:Do you support OEM ro customization for the S3N96A? A12: Yes, we are the manufacturer of optical transceiver. we support customization including label,package and EEPROM.
HYTOPTODEVICE has supplied over 5000,000 optical transceiver modules to data centers, ISPs, and enterprise networks across 100+ countries since 2011. Every module undergoes a 72-hour burn-in test and full DDM/DOM validation before shipment.
"We replaced 100 Cisco-branded SFP+ with HYTOPTODEVICE equivalents across our spine layer — zero compatibility issues, 40% cost reduction."— Network Engineer of ISP, England
Quality Certification & Compliance:
At HYTOPTODEVICE, our quality commitment is backed by industry-standard validations. From fiber optical transceiver manufacturing to final inspection, our processes ensure global compliance and reliability.
We adhere to rigorous standards for our SFP modules and network solutions:
ISO 9001: Certified quality management and production consistency.
CE & FCC: Fully compliant for seamless Global Market Access.
RoHS: Committed to environmental responsibility and hazardous material control.
Proven Reliability: Rigorous testing to reduce compliance risk and ensure safety.
Certified Quality. Global Standards. Guaranteed Performance.






