| NO. | Brand | Compatible P/N | Transceiver Type |
| 1 | DELL | 430-4593 | QSFP-40G-SR4(Cisco) |
| 2 | EdgeCore | ET6401-SR4 | QSFP-40G-SR4(Huawei) |
| 3 | Extreme | 10319 | QSFP-40G-IR4 |
| 4 | HPE Aruba | JH231A | QSFP-40G-LG4 |
| 5 | H3C | QSFP-40G-SR4-MM850 | QSFP-40G-ER4 |
| 6 | HPE BladeSystem | 720187-B21 | QSFP-40G-ZR4 |
| 7 | HPE H3C | JG325A | QSFP-40G-CSR4 |
| 8 | F5 Networks | F5-UPG-QSFP+ |
| Extreme Compatible | 10319 | Vendor Name | HYTOPTODEVICE |
| Form Factor | QSFP+ | Max Data Rate | 41.25Gbps |
| Wavelength | 850nm | Max Distance | 150m@OM4/100m@OM3 |
| Connector | MTP/MPO | Transmitter Type | VCSEL 850nm |
| Cable Type | MMF | Receiver Type | PIN |
| TX Power | -8.0~1.0dBm | Receiver Sensitivity | < -13dBm |
| Power Consumption | ≤1.5W | Modulation | NRZ |
| Protocols | IEEE 802.3 40GBASE-SR4, SFF-8436 | Operation Temperature | 0 to 70°C (32 to 158°F) |
Usage Guidelines & Best Practices
Fiber Choice: Only compatible with OM3 / OM4 multi‑mode MPO‑12 trunk cabling; single‑mode fiber cannot facilitate 850 nm SR4 operation and will produce link failure.
Distance Limit: 100‑metre maximum operating reach on OM3, 150‑metre maximum on OM4; excessive splice joints, dirty connector end‑faces or sharp fiber bends degrade practical transmission distances.
Cleanliness & Dust: Keep dust caps on whenever unattached. Clean fiber end-faces with a optical cleaning pen before insertion; dust causes over 80% of optical link failures.
Installation Specification: Hot‑plug supported; keep MPO connector end‑faces clean, observe minimum fiber‑bend radius requirements.
Operating Environment: Designed for commercial‑grade 0°C‑70°C ambient conditions; maintain adequate cabinet‑level airflow to prevent excessive module temperature build‑up.
Full Compatibility List and Supported Devices
1. Supported Hardware & Firmware
Primary Application Scenarios
• Intra‑data‑center short‑haul leaf‑spine fabric connections built with EdgeCore SONiC‑capable open switches
• 40G aggregation‑layer trunk bandwidth expansion for open‑compute enterprise campus infrastructures
• Top‑of‑Rack 40G uplink pathways linking EdgeCore ToR hardware to virtualisation and HPC server farms
• Rack‑to‑rack short‑distance multi‑mode fiber connections within open‑compute server halls
• Enterprise and service‑provider infrastructure modernisation projects based on EdgeCore open‑networking hardware
• Multi‑vendor mixed‑fabric deployments supporting cloud‑native and container‑based workload environments




1. 40G Connectivity for Data Center
High speed, low overhead. The QSFP+ 40G optical transceiver brings gigabit-class throughput to dense data center racks while drawing less power and taking up less space.



FAQ
Q1: How do I clear unsupported‑transceiver warnings after fitting HYTOPTODEVICE QSFP+ 40G SR4 on Extreme Summit switches? A: This usually means the module's coding does not match the switch's vendor lock. Genuine‑compatible HYTOPTODEVICE modules include the right coding; if the message persists, check the port configuration, update firmware, or contact us for a recode.
Q2: Can HYTOPTODEVICE 40G SR4 work alongside existing 10G SFP+ hardware for phased Extreme network modernisation? A: Yes, with a breakout solution: the 40G SR4 can be split into 4×10G links using an MPO‑to‑4×LC breakout cable connected to SFP+ ports, letting you migrate gradually.
Q3: What fiber types are required to operate HYTOPTODEVICE Extreme‑compatible QSFP+ 40G SR4 modules? A: Multimode fiber only — OM3 or OM4 (OM5 also supported on some platforms). It will not work on single‑mode fiber; that requires a 40G LR4 module.
Q4: What typical power draw should planners account for when populating dense Extreme switch racks with HYTOPTODEVICE QSFP+ 40G SR4? A: Typically around 1.0–1.5 W per module, depending on vendor and temperature — far lower than the MSA maximum, so it is safe for dense switch line cards.
Q5: What insertion loss and link‑budget values need evaluation for HYTOPTODEVICE 40G SR4 inside Extreme‑managed fiber plant? A: The 40GBASE‑SR4 channel supports a maximum insertion loss of about 1.9 dB (including connectors and patch panels). Confirm your cable plant loss before deployment.
Q6: Will deploying HYTOPTODEVICE 40G SR4 hardware constrain future 100G upgrade plans on Extreme infrastructures? A: It is a 40G product; the fiber (OM3/OM4) can often be reused for 100G SR4/SR10, but the module and ports must be upgraded. Plan cabling with future capacity in mind.
Q7: Can existing on‑site MPO trunk cabling be reused with HYTOPTODEVICE QSFP+ 40G SR4 in Extreme network projects? A: Check the fiber count, connector polish (UPC), and polarity. Existing 12‑fiber MPO trunks are often reusable, but verify loss and polarity against SR4 requirements.
Q8: What performance trade‑offs arise when mixing OM3 and OM4 multimode fiber within one physical link using HYTOPTODEVICE 40G SR4? A: Yes, but the reach is limited by the shorter‑grade segment (OM3), so a mixed link is rated at 100 m maximum.
Q9: What compliance certificates are available for HYTOPTODEVICE factory‑bulk‑ordered QSFP+ 40G SR4 transceivers? A: Typical certifications include CE, FCC, RoHS, and REACH compliance; some suppliers also hold ISO 9001. Ask for certificates before ordering.
Q10: Are HYTOPTODEVICE QSFP+ 40G SR4 units properly ESD‑shielded for shipping and on‑site handling within Extreme deployments? A: Yes — they ship in anti‑static packaging and are designed for hot‑swap with ESD protection. Always ground yourself before handling.
Q11: What stock position and expected lead‑time apply for HYTOPTODEVICE Extreme‑compatible QSFP+ 40G SR4 factory bulk orders? A: Popular models (Cisco/Arista/Juniper‑compatible 40G SR4) are usually in stock with 24–72 h dispatch; custom‑coded or industrial versions may take 1–3 weeks.
Q12: Which payment options and international Incoterm arrangements can HYTOPTODEVICE support for cross‑border factory wholesale QSFP+ 40G SR4 procurement? A: Typical terms: T/T, PayPal, or trade assurance for smaller orders; FOB, CIF, or DDP for freight. Confirm total landed cost (shipping, duties, taxes) before finalizing.
Q13: Are there unplanned import‑related hidden fees when importing HYTOPTODEVICE QSFP+ 40G SR4 for Extreme enterprise projects overseas? A: Duties and taxes vary by destination and Incoterm. Ask the supplier to quote DDP if you want a fixed, all‑inclusive delivered price with no surprises at customs.
Q14: How can ExtremeXOS administrators retrieve real‑time optical diagnostic metrics from HYTOPTODEVICE QSFP+ 40G SR4? A: Use the switch CLI (e.g., show interface transceiver or show optics) to view per‑lane temperature, voltage, TX/RX power, and alarms — the data comes from the module's standard DOM.
Q15: Does investing in 40G SR4 still deliver tangible business value amid industry transition toward 100G / 400G speeds for Extreme environments? A: For existing 40G networks it remains fully supported and cost‑effective; your multimode cabling can often be reused later. Choose suppliers with long‑term availability so you can restock for years.
Packaging & Custom OEM Solutions
Each QSFP+ SR4 module is individually sealed in ESD-safe anti-static packaging and stocked for same-day dispatch. Bulk orders can also be customized with OEM packaging—logo printing and private labeling included—built for network distributors, system integrators, and enterprise deployments.
Why Network Engineers Choose HYTOPTODEVICE
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.
“Phenomenal performance. We deployed 200 HYTOPTODEVICE SFP+ modules to replace Cisco OEMs in our backbone network. Result? Zero compatibility issues and a 60% reduction in costs. Highly recommended for mission-critical networks."— Senior Network Engineer, Regional Telecom, Australia
Quality Certification & Compliance
At HYTOPTODEVICE, our quality commitment is backed by industry-standard validations. From fiber optical transceiver manufacturing to final visual inspection, from IQC、IPQC、FQC to OQC, 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.



