Why Choose Us?
Advanced Equipment
Our equipment include High-frequency welding machine, USB Auto welding machine, USB 3.1 Haba welding machine, laser welding machine, laser cutting machine, temperature and humidity cycle tester, salt spray tester, SGS Test Machine, Connector Insert Force Tester, Network Analyzer, IP67 Waterproof tester.
Wide Product Range
Its product series include peripheral connecting cables for Computer, Automobile, Aviation, Medical and other fields. At the same time, in order to meet the growing demands of customers, the company also manufactures a variety of special customized products.
Complete Qualifications
The company has passed the ISO9001:2015, ISO14001:2015 and the USB3.1 series, certification as a member of the HDMI association. Meanwhile, we own a lot of advanced production equipment and quality inspection equipment to improve production efficiency, product consistency and quality stability.
Quality Guaranteed
Kaiwin has 10 modern production lines, employs about 350 workers and covers an area of 9000㎡, with an annual production capacity of about 10 million pcs. We have a team of excellent technical personnel with more than 10 years of experience.
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USB A To Dual RS232 Adapter Cable With FTDI Chip
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FTDI USB RS232 To DB9 D-SUB 9 PIN Male Cable Adapter
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RJ45 Male To 2 X Stereo 6.3 mm TRS Audio Patch Cable
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Ethernet RJ45 Male To 2 X XLR Female Cable
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USB-C To RS232 DB9 Serial Adapter Converter Cable
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Mini USB 2.0 Male To RS232 DB9 Female Extension Lead Cable
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USB 2.0 Male To Serial 9Pin Male DB9 RS232 Cable
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A serial cable is a cable used to transfer information between two devices using a serial communication protocol. The form of connectors depends on the particular serial port used. A cable wired for connecting two DTEs directly is known as a null modem cable.
Benefits of Serial Cable
Serial cables, also known as serial communication cables, are used to transmit data between two devices in a serial manner, where data is sent one bit at a time sequentially over a single wire or a pair of wires.
Longer Distance Transmission
Serial cables are capable of transmitting data over longer distances compared to parallel cables. They are less susceptible to signal degradation, making them suitable for long-distance communication.
Versatility
Serial cables are compact and have fewer pins or connectors compared to parallel cables. This makes them more versatile and suitable for devices with limited space or port availability.
Device Compatibility
Serial cables can connect a wide range of devices, including computers, peripherals, industrial equipment, and networking devices. They provide a standardized connection method for various devices.
Configuration Flexibility
Serial cables allow for different configurations, such as point-to-point or multi-drop connections. This flexibility enables customized setups for connecting multiple devices.
What Are Serial Cables Used for Now?
If talking serial cables in general, they're used for pretty much the same thing as the past 60 years. Remember, USB cables are elated serial communication standards, you'd be surprised how much equipment still employs these types of ports and cables.
It is still quite common in commercial and industrial applications. For example, almost all commercial routers and switches include standard serial ports, so you can configure them before you've set up any of the network ports.(Tip: always carry a standard serial cable or two of varying lengths with you when you're doing anything related to a physical network set up!)
Yes, networks have evolved, but why fix something that's not broken and is still totally reliable? There's a lot of legacy equipment still in use today for the simple fact that it's reliable and doesn't justify a pricey replacement. And there's a good chance that legacy equipment still has a serial port somewhere. So, no matter how you define them, serial cables are still widely used today.
Technically, personal computers still use serial cables too. Most storage devices use serial ATA cables to connect to the motherboard. What is a serial ATA cable? The serial ATA cable allows high-speed communication via two pairs of conductors. It replaced the parallel ATA that operated at a much lower frequency.


Serial Cable Connectors and Pinouts
A serial cable is a type of cable that is used to connect devices that communicate using serial communication protocols. It is commonly used to establish a connection between a computer and peripheral devices such as modems, printers, and routers.
Serial cables consist of multiple wires that transmit data in a sequential manner, hence the term "serial." These cables typically use either a DB9 or DB25 connector on one end, which plugs into the serial port of the device, and a different connector on the other end, depending on the device being connected.
Serial cable connectors and pinouts vary depending on the type of device and the serial communication standard being used. The most common pinout configurations are RS-232 and RS-485. RS-232 is a standard for serial communication between devices, while RS-485 is a standard for serial communication over long distances.
In recent years, the use of serial cables has declined with the rise of newer communication protocols such as USB and Ethernet. These newer protocols offer faster data transfer rates and are more versatile in terms of device compatibility.
However, serial cables are still used in certain industries and for specific applications where legacy devices or long-distance communication are involved. While serial cables may not be as prevalent as they once were, they still serve a purpose in certain scenarios and remain an important part of the technology landscape.
Tips and Tricks for Serial Cable Storage
There are some other tips and tricks when it comes to Serial Cable storage.
Label your cords. This is an excellent way to keep track of them. This will save time when looking for specific cables or cords.
Use empty boxes for storage. This is another cost-effective option that can be great for keeping multiple items stored away in one easy-to-use container.
Invest in cable organizers. If you have multiple cables that need to be organized together at once, you need these. They are great for keeping multiple cables in one place without creating too much clutter or becoming disorganized.
No matter what storage method you choose when it comes to extension cords, using proper techniques will save space, prevent damage, and increase safety in your home or workspace. With simple DIY solutions available and an abundance of tips and tricks on how to store your electrical cables safely and effectively, your extension cord storage worries will soon be a thing of the past!

Parallel cable, a series of metal wires that enable multiple bits of data to be transferred simultaneously. Parallel cables have mostly given way to serial cables, where data is transferred one bit after another.
Benefits of Parallel Cable
Consistent Voltage
Apart from its ability to continue functioning, even if one section fails, parallel circuits also allow for components in a circuit to have the same, consistent voltage. Take a string of lights, for example. All of the bulbs within the string will be consistently bright as the current flowing through them, the voltage operating equally on every parallel element. This isn't possible with a series circuit because voltage drops as you add or take away components, possibly causing damage to the mechanism.
Safe and Reliable
A parallel circuit is reliable and safe. While series circuits don't overheat as easily and may be better for applications around anything flammable, parallel circuits are much more reliable for larger scale applications where there's no room for error.


Interlink and Windows 95/98/ME DCC parallel cable
The following parallel cable can be used with file transfer and network programs like LapLink and InterLink. The cable uses the parallel port which makes it possible to achieve higher throughput than with a serial connection at the same low costs. The cable is among others compatible with the following software.
Laplink from Travelling software
MS-DOS v 6.xx InterLink
Windows 95, 98 and ME direct cable connection
Norton Commander
Norton Ghost
Because the parallel port on a computer was mainly designed to connect printers with one-way communication, a trick is used to achieve full two way data transfer between both sides. Five error and status message inputs are redefined as data inputs. Instead of reading full bytes, the communication software reads these five bits and combines multiple groups of data back to bytes. The sender and receiver have to use the same protocol to convert bytes to groups of 5 bits and vice versa.
What You Should Know When Use Parallel Cable
In deciding to use parallel cables, there are some considerations the engineer needs to be aware of, particularly in current capacity, voltage drop and fault rating.
Current Capacity
In parallel cables, the phase current is divided between two or more conductors. Typically in paralleling cables, the size and length of each cable are the same, and the current flow is equally divided between the parallel conductors. If the conductors (or lengths) are of unequal size, then the current will not be distributed evenly (i.e. the conductors will carry different currents). Where currents in parallel conductors are unbalanced, it may be necessary to provide separate overload protection for each conductor.
Voltage Drop
The calculation of voltage drop across a cable needs to consider the arrangement of parallel conductors. For equally loaded conductors the impedance of each conductor is the same, and the calculation is relatively easy. Where each conductor impedance varies, and there are different current flows in each conductor the calculation becomes more involved.
Fault Rating
For parallel conductors, the worse case fault may still be towards the fault source and may only apply to a single faulted parallel cable or conductor. Adding additional cables in parallel doe not necessarily increase the fault rating. Generally, each individual parallel cable should be rated for the expected fault level.
Our Factory
Founded in Dongguan in 2003,Kaiwin has 10 modern production lines ,employs about 350 workers and covers an area of 9000㎡, with an annual production capacity of about 10 million pcs. Its product series include peripheral connecting cables for Computer, Automobile, Aviation, Medical and other fields. At the same time, in order to meet the growing demands of customers, the company also manufactures a variety of special customized products.
Our equipment include High-frequency welding machine, USB Auto welding machine, USB 3.1 Haba welding machine, laser welding machine, laser cutting machine, temperature and humidity cycle tester, salt spray tester, SGS Test Machine, Connector Insert Force Tester, Network Analyzer, IP67 Waterproof tester.
Kaiwin has enhanced its internal management level through exploration and practice and placed emphasis on quality and whole-process service with technological innovation as the approach of development. While working hard to improve internal skills, it also learns from outstanding peer companies in the industry, seeking development in the process of competition and seizing opportunities amid challenges. Kaiwin is always dedicated to making every cable with Professional Spirit. Kaiwin is always dedicated to serving every customer with Professional Spirit.


Ultimate FAQ Guide to Serial And Parallel Cable
Q: What is a serial cable?
Q: What is the use of a serial cable?
Q: What are the functions of a serial cable?
Q: What is an example of a serial cable?
Q: Why do we use serial cable?
Q: What is serial cable and cross cable?
Q: Is RJ45 a serial cable?
Q: Is serial cable still used?
Q: What voltage is a serial cable?
Q: Is serial cable analog or digital?
Q: What is the difference between serial cable and console cable?
Q: Are all serial cables the same?
Q: Are serial cables straight through?
Q: How long can you run a serial cable?
Q: Is serial cable the same as VGA?
Q: What is the difference between serial cable and parallel cable?
Q: What are the advantages of parallel cables?
Q: What is the purpose of a parallel cable?
Q: Why would you wire in parallel cable?
Q: Does wiring in parallel cable increase voltage?
Dongguan KaiWin Electronics Co., Ltd. is one of the leading serial and parallel cable manufacturers and suppliers in China. We warmly welcome you to buy customized serial and parallel cable made in China here from our factory. For free sample, contact us now.













