40G QSFP+ and Related Products.


QSFP plus is a 40G optical module package defined by the IEEE organization, which greatly meets the market demand for high density and high speed. The 40G QSFP optical module is a compact hot-swappable light module with four transmission channels, each with a data rate of 10Gbps, and is compliant with sCSI, 40G Ethernet, 20G/40G InfiniBand and other standards. The interface types of this optical module are LC interface and MTP/MPO interface, which are used in single-mode applications and multimode applications respectively. With the advent of cloud computing and big data, networks are being forced to grow at high rates and densities, while the utilization of virtualized servers increases. To provide enough I/O (input/output) bandwidth, many new access switches have evolved to connect to 2 or 4-port 40G Ethernet. The rapid development of interconnected data transmission is inseparable from the 40G QSFP-optical module, because it provides enough bandwidth to ensure that data conversion is unobstructed to meet the needs of the data center, enterprise campus network. The 40G QSFP optical module can transmit data at 10Gbps per channel at the same port volume as the XFP module, and supports data transmission for four channels at the same time, so the 40G QSFP optical module can be 4 times denser than the XFP optical module and 3 times that of the SFP-optical module.

40G QSFP+ Types

The 40G LR4 QSFP-optical module meets the 802.3ba standard with a maximum transmission distance of 10km, and has the advantages of high density, low cost, high speed, high capacity, low power consumption and so on. The operating wavelength of the 40G SR4 QSFP-optical module is 850nm, which transmits data through four separate full duplex channels at the same rate as the 40GLR4 QSFP-optical module. The transmission distance of the 40GLR4PSQSFP and optical module is 10km, which is a highly integrated 4-channel optical module, which has the advantage of high port density and low cost. The optical port of this optical module uses parallel single-mode technology, PSM. The 40G ER4 QSFP-optical module converts four 10G data input channels into four CWDM optical signal channels at a rate of 11.2Gbps, and multiplexes them into a single channel for 40G data transmission. The 40GCSR4 QSFP-optical module has extended the transmission distance of OM3 and OM4 multimode fibers, and its 10G transmission channels are iEEE10GBASE-SR compliant. A 40G high-speed cable (DAC) is a cost-effective high-speed interconnect solution for connecting cables with fiber-optic transceivers at both ends for 40Gbps data transmission. 40G high-speed cable is more common can be divided into 40G QSFP , to QSFP , 40GQSFP , 40GQSFP , 40GQSFP , 4XFP , DAC three types , in practical applications are more than the first two types.

40G QSFP+ Applications

The 40G SR4 QSFP-optical module is often used with the MPO/MTP connector, and can also be used with mTP/MPO to LC fiber jumpers to achieve the connection between the 40G network equipment and the 10G network device. In addition, the 40G SR4 QSFP plus optical module is a multimode fiber type, which is used with OM3/OM4 multimode fiber when the transmission distance is 100m and 150m respectively. Both optical modules use duplex LC interface, generally used in single-mode applications, they all have four independent optical signal reception and transmission channels, the need to use WDM technology to reuse and cosmographic optical signals, so as to achieve the optical signal in long-distance single-mode fiber transmission. The difference is that the transmission distance of the 40GLR4 QSFP plus optical module can reach 10km, while the transmission distance of the 40GER4 QSFP plus optical module is generally 40km. The 40G LR4 PSM optical module uses a four-way parallel design of the MPO/MTP interface for data transmission. It works the same way as the 40G SR4 QSFP plus light module. The 40GCSR4 QSFP-optical module is generally used with multimode fiber, and it supports the 300 m signal transmission of the OM3 jumper and the 400 m signal transmission of the OM4 jumper. In addition, the 40GCSR4 QSFP plus optical module can be connected to 4x10G duplex mode by connecting the optical interface of four branch cables.

40G QSFP+ from Professional China Manufacturer

40G QSFP and DAC high-speed cable and QSFP and optical module can be used as a solution for 40G network transmission applications, 40G QSFP and DAC high-speed cable applications are more in the data center short-distance transmission, low cost, easy wiring and other advantages, and 40G optical module can achieve long and short distance transmission.

Multimode QSFP plus rack-to-rack, data center, 40G Ethernet, InfiniBand QDR, DDR, and SDR for multimode applications. Single-mode QSFP plus is used for high-speed interconnect between data centers and the Internet, routers and transmission equipment, rack-to-rack, panel-to-panel, and 40G-LR4 Ethernet links InfiniBand SDR, DDR and QDR applications. The 40G SR4 QSFP plus optical module is suitable for short-range transmissions and is commonly used in data centers with OM3/OM4 fiber connections, while the 40G LR4 QSFP plus optical module and 40G LR4 PSM optical module are suitable for long-distance transmission. For comparison of the two optical modules, the 40G LR4 QSFP plus optical module is more cost-effective.

Because in long-distance transmission, the 40G LR4 QSFP plus optical module is only suitable for two fibers, while the 40G LR4 PSM optical module requires eight single-mode fibers. Most high-density data center fiber cabling systems are available in plug-and-play, high-density, scalable, pre-terminated fiber cabling system solutions. Huihongfiber provides you with transmission equipment such as 40G QSFP and DAC high-speed cables, 40G AOC active fiber optic cables, QSFP-optical modules, and MPO fiber jumpers required for 40G network cabling solutions.

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40G QSFP+ Manufacturer

Fiber Optics for Data Centers

Fiber Optics for Data Centers

Fiber Cables, Transceivers and Components.

We have high speed fiber optic cables and transceivers for data centers, including 1G,10G,40G,100G and more.

Fiber Optics for FTTX

Fiber Optics for FTTX

Indoor cables, outdoor cables, FTTX cables.

We have various types of cables for FTTX projects, including indoor cables, outdoor cables, ADSS, FTTH, FTTA.

Professional Team

Professional Team

Professional team with rich experience.

We have a team of experienced staff. Most of our staff have over 10 years’ experience in this industry.

"For quality 40G QSFP+ and equipment you can trust us, here you get reliable products, fast delivery and low prices."

40G QSFP+ Supplier

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Worldwide Shipping

Over the years, our fiber optic cabinets and related equipment are chosen by clients from all over the world, we ship goods to over 100 countries and regions on the planet, including Asia, Europe, America, Oceania and Africa.

High Quality

High Quality

Thanks to our skilled workers, experienced engineers and the advanced manufacturing equipment, we are able to provide the top quality fiber optic cabinets and components to customers.

Diversified Products

Diversified Products

We make a wide range of fiber optic cables, components, closures and related communication equipment, together with the power and electric modules, to use with our network fiber optic cabinets.

Cost Effective

Cost Effective

As direct manufacturer, we offer low price to customers to support them win in the business. With mass production and long history, we are able to cut cost and supply competitive prices fiber optic cabinets.

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Fast Delivery

For small quantity, we ship by couriers like DHL/FedEx/UPS/TNT/EMS, for big quantity orders, we ship by air or by sea. As specialized fiber optic cabinets manufacturer, we have a fast delivery for both small and big quantity orders.

We Make More Than 40G QSFP+

Fiber Optic Patch Cord


We make fiber optic patch cable, LC,SC,ST, E2000,MU, VF45,FC, MT-RJ, MPO, Volition,MTP, DIN, D4, SMA, Escon,FDDI and more. UPC polish, APC polish connectors.

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Fiber Optic Pigtails


We are supplier of fiber pigtails SC, SC/APC, ST, ST/APC,FC, FC/APC, LC, LC/APC, MT-RJ ,MPO,MTP,E2000,fiber optic pigtails,simplex,duplex,fan out pigtails.

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Fiber Optic Adapters


Fiber Optic Adapters FC, SC, ST, LC, MT-RJ, MU, simplex, E2000, FC/APC,duplex, SC/APC, LC/APC, E2000/APC ,quad, mating sleeves, hybrid fiber optic adapters.

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Fiber Optic Splitters


Bare fiber PLC splitter, blockless PLC splitter,LGX PLC splitter, fused fiber optic splitter, rack mount fiber splitters and custom made fiber splitter boxes.

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Fiber Optic Transceivers


Transceivers for major players in the industry, SFP,XFP,SFP+,GBIC, Xenpak,X2,BIDI,CWDM,DWDM,QSFP, transceivers cables, QSFP28, QSFP Plus, CXP, CFP, CFP2 and more.

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Fiber Optic Cables


Indoor fiber optic cables, outdoor cables, FTTH cables, single mode, multimode, OS1,OS2,OM1,OM2,OM3,OM4,OM5 and more.

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Fiber Optic Trays


Fiber trays, fiber optic modules, terminal boxes, custom fiber optic components, to use in fiber patch panels, splice closures, distribution units and boxes.

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Custom Design


Custom design fiber optic cabinets, boxes, closures, cables, modules, transceivers and more, welcome to contact us for your fiber optic products needs.

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Professional 40G QSFP+ Manufacturer

In the fiber network, different types of optical modules used in different networks are also different, there are 10G/25G/40G/100G, optical module packages are also used SFP28/QSFP plus /QSFP28 and other optical modules packages. The 40G QSFP-optical module supports simultaneous transmission of 4 10Gbps channels, providing a transmission rate of 40Gbps that can be used in data centers, high-performance computing networks, Enterprise core networks are equal to applications. Today, 40G networks are common in most data centers, and optical modules are essential components for data center device interconnect.


Looking for online store suppliers but did not particularly suitable, and then finally found in this, the most pleasantly surprised is the cost-effective, it is perfect, light module quality is good, with no problem, everything is normal, basically in our ideal range. Huihongfiber has been our fixed supplier, good service, but also to provide all aspects of technical help, the price is reasonable, in this purchase of compatible modules completely assured.Tina Jenkins,Puerto Rico.

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