40G QSFP+ optical transceiver are usually hot-swappable design, compliant with SFF-8436 protocol and QSFP Multi-Source Agreement (MSA), and are widely used in a variety of application scenarios, such as Ethernet, Fibre Channel, and InfiniBand. It supports both multi-mode fiber (MMF) and single-mode fiber (SMF), and offers different interface types, such as MTP/MPO and LC connectors, to suit different transmission needs
Certified QSFP+ form factor, broad vendor compatibility
Multimode & single-mode options for short-reach to long-haul links
Low power and high port density for modern racks
Factory burn-in and QA test reports included
OEM labeling, custom packaging, and fast global shipping
Our 40G QSFP+ transceivers are 100% compatible with major OEM brands, including:
Cisco®，Arista®，Juniper®，HPE®，Dell®，Brocade®，Huawei®
They are rigorously tested for plug-and-play interoperability across different networking platforms and protocols.
Fiber Types: Single-mode (SMF) and multimode (MMF)
Interfaces: MPO/MTP for SR4, dual LC for LR4
Protocols Supported: 40GBASE-SR4, 40GBASE-LR4, 40G PSM4, InfiniBand QDR
Why Choose Us
Factory burn-in & full optical/electrical test reports.
Broad vendor compatibility + custom firmware/PN mapping.
OEM labeling, private packaging, and scalable production.
Fast lead times, global shipping, and warranty support.
FAQ About 40G QSFP+ Optical Transceivers
A QSFP+ 40G transceiver is ideal for high‑density, high‑bandwidth environments such as spine‑leaf data center fabrics, enterprise core switches, and HPC clusters.
When selecting a 40G optical transceiver, consider transmission distance (SR for short‑reach multimode, LR for long‑reach single‑mode), fiber type, connector interface (LC vs MPO), and compliance with standards like IEEE 802.3ba. Verifying vendor compatibility lists ensures plug‑and‑play operation on Cisco, Juniper, Arista, and other OEM equipment.
A reputable 40G QSFP+ transceivers supplier should hold ISO 9001:2015 certification, operate in‑house optical test labs (BER, DDM), and offer interoperability warranties. (eg:Fibrecross)
The 40G transceiver price depends on factors like manufacturing volume, module type (SR, LR, ER), warranty length, and compliance testing. OEM‑branded units typically cost more.
Ordering wholesale 40G QSFP+ transceivers provides significant cost advantages—bulk discounts can reduce per‑unit costs by up to 35%. Wholesale purchases also enable customized firmware programming, extended support agreements, and priority production slots, ensuring on‑time delivery for hyperscale or campus network rollouts.
