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What is a SCSI Cable?

Views: 3     Author: Site Editor     Publish Time: 2022-12-19      Origin: Site

SCSI cables are cables specifically designed for use with SCSI port links. Like normal cables, SCSI cables have male and female connectors inserted for use with two different devices and are used to establish a connection between them. This connection allows two components (such as a computer and printer) to interact with each other using the cable.

Different cables can contain many connections. Some may have as many as 16 connectors, allowing as many devices to be connected. You may use a different connector type for any device inside the computer than you would for an external device such as a printer or hard drive.

SCSI Signal Types

SCSI has two main types of signals, single-ended and differential.

You cannot mix and match these two types on the same bus. However, under certain conditions, you can combine low-voltage differential (LVD) SCSI with single-ended (SE) devices on the same bus. These conditions are if your SCSI card supports these cases and you apply a multi-mode terminator, also known as the LVD/SE type.

When using SCSI connections, you will use a single cable to merge multiple devices. You must use a cable that is terminated at both ends. When this is done, all devices will share the SCSI signal.

what is SCSI cable

Male-female ports on SCSI cables

Connectors are available in different gender specifications, with gender referring to each cable end. Male connectors, also called plugs, consist of protrusions inserted into female connectors (sockets).

Male-male refers to a cable with a male connector on each end. A male-female cable has a male connector on one side and a female connector on one end. Finally, female-female has two female connectors on each end.

SCSI cable types

There are many types of SCSI cables, each with its own features. SCSI cables are usually designed to be wide and flat, although there are also rounded designs. Below is a brief introduction to the three types of SCSI cable. Of course, SCSI Cable is not only these three types. Suppose you want to know more about the different types of SCSI cables. It can be viewed through our product section for our customers to produce custom SCSI cables. You can also contact us directly to learn about the relevant issues.


SCSI-I supports 1.5 Mbps asynchronous data transfer rates and 5 Mbps synchronous data transfer rates. SCSI-I has an 8-bit interface with 50-pin connections and supports single-ended, open-collector storage.


SCSI-II provides higher data transfer rates, improved connectivity, more comprehensive bus routing, parity, and enhanced stability through synchronous negotiation.

High Voltage Differential (HVD) is also included in the SCSI-II standard to extend the length of the SCSI bus. The SCSI length limit is increased to an unprecedented 25 meters using differential signals. The cable uses separate pins to ensure proper transmission.


SCSI-III supports higher data transfer speeds and more than 32 devices on a chain. In addition to the standard parallel interconnect of SCSI-II, it includes serial connectors. SCSI-III's serial interconnect uses three innovations: Serial Storage Architecture (SSA), Fibre Channel, and IEEE P1394. In addition, the serial transfer mode supports higher data speeds, more peripherals per bus, simple connectors, and longer cables.

You'll also find Ultra SCSI cables using the SCSI-III standard. You can increase throughput by extending the bus (Wide Ultra SCSI) and/or increasing the clock (Ultra2 SCSI). Ultra3 SCSI is essentially doubling the clock rate to increase throughput, but it is still a SCSI-III device, not a new SCSI.

type of scsi cable

SCSI Cable Applications

When choosing a SCSI cable, consider what you will use it for. For example, will you use the audio/video (AV) cable primarily for audio and video applications, such as connecting speakers or monitors? Will you use the computer cable to connect any peripheral devices associated with the computer, such as mice, keyboards, printers, and modems? Network hubs, routers, and switches are all connected by network cables.

External cables are easy to use, especially if connecting only one device. You have to determine what type of connection is on the SCSI card and what type of connection is on the device, and then purchase the cable with matching end connectors.

Now you know what a SCSI cable is. Even if you do not know, it does not matter. Contact SCSI cable manufacturer - Maojia. We can do a more detailed explanation for you if you need it. You can also make an appointment to visit our factory to see our SCSI cable production process and the quality of the cable.


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