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DB9 Cables – RS232 Serial Cords - Null Modem

ShowMeCables null modem cables (DB9) are used to connect two DTE devices together without using a DCE device in between. For this to happen, the transmit (TXD) and receive (RXD) pins on one of the serial connectors are flipped. Depending on your demands and applications, these DB9 cables can be ordered in a variety of lengths, connectors and plug types. Make your purchase of DB9 cables now to take advantage of our same business day shipping.

Our null modem RS232 serial cords are available in DB9 serial to USB, DB25 to DB9, DB9 to DB9, DB9 to IDC 10 Pin and DB9 to RJ45 options. We also offer USB to DB9, USB to serial and USB C to DB9 serial cords. ShowMeCables serial cables feature thumbscrews, fully molded connectors and all lines wired straight through. Our DB9 serial components are available in blue, gray and white colors. The null modem RS232 serial cables come in 1 to 100 feet standard as well as custom lengths. These null cables are offered in male-to-male, female-to-female and male-to-female connector options.

ShowMeCables DB9 male to DB9 male serial cable comes with 30 AWG conductors. We offer null modem cords in AT modem, Cisco, null modem and straight-through pinout options with A and C plug types.

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  1. USB 1.1 to DB9 Serial Adapter
    Management Function | RS232 Serial Interface | 115 Kbps | Change Connector Type Learn More
    SKU: 23-107-025
    Quantity Discount Pricing
    1-4 5-9 10-49 50-99 100+
    $26.19 $25.19 $23.79 $22.59 $21.59

    Out of stock
  2. USB Type C to RS232 Serial Adapter DB9 Male - Hex Nut - FTDI Chipset

    40 Inch Cable | USB Type C to DB-9 RS232 | Hex Nut | FTDI Chipset

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    SKU: 23-110-002
    Quantity Discount Pricing
    1-4 5-9 10-49 50-99 100+
    $18.79 $18.39 $17.59 $17.19 $16.79

    Out of stock
  3. USB to RS232 Serial Adapter DB9 Male - Hex Nut - Prolific Chipset

    40 Inch Cable | USB 2.0 to DB-9 RS232 | Hex Nut | Prolific Chipset

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    SKU: 23-110-003
    Quantity Discount Pricing
    1-4 5-9 10-49 50-99 100+
    $15.59 $15.19 $14.79 $14.59 $14.39

    Quantity available: 479

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  4. USB to RS232 Serial Adapter DB9 Male - Thumbscrews - Prolific Chipset

    40 Inch Cable | USB 2.0 to DB-9 RS232 | Thumbscrews | Prolific Chipset

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    SKU: 23-110-004
    Quantity Discount Pricing
    1-4 5-9 10-49 50-99 100+
    $12.79 $12.39 $12.19 $11.99 $11.59

    Out of stock
  5. USB to DB9 Male Serial Adapter Cable - 1.5 FT
    Add DB9 Port to PC | Automatic Handshake | 230kbps+ Data Transfer Rate | Windows Compatible Learn More
    SKU: 23-152-115
    Rating:
    100 % of 100
    Quantity Discount Pricing
    1-9 10-24 25-99 100-249 250+
    $35.39 $34.39 $32.99 $31.99 $31.39

    Quantity available: 51

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  6. DB9 Male to DB9 Male Null Modem Cable - 6 FT
    Connect PC Serial Ports | Fully Molded | Thumbscrews | Null Modem Pinout Learn More
    SKU: 43-108-006
    Rating:
    100 % of 100
    Quantity Discount Pricing
    1-9 10-24 25-99 100-249 250+
    $12.19 $10.59 $9.49 $8.79 $8.09

    Quantity available: 982

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  7. DB9 Serial Port Cable
    Add DB9 Port to PC | Flat Ribbon Cable | Compatible with Most I/O Cards & Motherboards Learn More
    SKU: 648
    Quantity Discount Pricing
    1-9 10-24 25-99 100-249 250+
    $8.99 $8.39 $7.99 $7.49 $7.09

    Quantity available: 2213

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