RS-232 Cable | McMaster-Carr

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139 Products

USB Adapter Cords

Adapt your USB port to connect to a variety of other devices. These USB cords are backward compatible, so they work with cords and connectors that meet the same or a lower USB standard.

Double-shielded cords have insulation, so they reduce signal interference from nearby equipment and devices.

For technical drawings and 3-D models, click on a part number.

USB A Plug × DB9 Plug

A Plug × DB9 Plug

USB 2.0—480Mbps Transmission Speed
Length, ft.	Application	Industry Designation	Shielding	Shield Type	Color	Includes		Each
2 1/2	Data	RS-422A, RS-485	Double Shielded	Braid, Foil	Black	__	0000000	000000
5	Data	RS-232	Unshielded	__	Black	Driver CD	0000000	00000

USB A Plug × DB25 Socket

A Plug × DB25 Socket

USB 1.1—12Mbps Transmission Speed
Length, ft.	Application	Industry Designation	Shielding	Shield Type	Color		Each
6	Data	RS-232	Double Shielded	Braid, Foil	Blue	000000	000000

USB C Plug × DB9 Plug

C Plug × DB9 Plug

USB 2.0—480Mbps Transmission Speed
Length, ft.	Application	Shielding	Color		Each
5	Data	Unshielded	Black	00000000	000000

D-Sub Cords

Connect computers, monitors, printers, and other devices with DB connections.

RS-232 cords transmit data between a modem and another device, such as a computer.

Null modem cords connect two like devices, such as a computer to a computer.

Parallel cords connect a computer to a printer.

Shielded cords have foil to prevent signal interference from nearby devices. Use them in settings with low to moderate signal interference, such as labs, storage facilities, and offices.

Double-shielded cords have braid and foil for better protection against signal interference than shielded cords. However, the extra shielding adds diameter and reduces flexibility. They’re used in steel mills, machine tool plants, and other heavy processing facilities.

Cords with reversible mounting hardware have removable thumb screws to enable a wider range of mounting options than other cords. Mount them to ports and adapters, as well as directly into panels.

DB9 Plug × DB9 Plug

DB9

RS-232—Shielded
Length, ft.	Shield Type	Cord OD	Color		Each
1	Foil	0.24"	Beige	00000000	000000
2 1/2	Foil	0.24"	Beige	00000000	00000
5	Foil	0.24"	Beige	00000000	00000
10	Foil	0.24"	Beige	00000000	00000
15	Foil	0.24"	Beige	00000000	00000
25	Foil	0.24"	Beige	00000000	00000
50	Foil	0.24"	Black	00000000	00000
RS-232—Double Shielded
1	Braid, Foil	0.24"	Beige	00000000	00000
2 1/2	Braid, Foil	0.24"	Beige	00000000	00000
5	Braid, Foil	0.24"	Beige	00000000	00000
6	Braid, Foil	0.25"	Gray	0000000	00000
10	Braid, Foil	0.25"	Gray	0000000	00000
12	Braid, Foil	0.24"	Beige	00000000	00000
15	Braid, Foil	0.24"	Beige	00000000	00000
25	Braid, Foil	0.24"	Beige	00000000	000000
50	Braid, Foil	0.24"	Beige	00000000	000000

DB9 Plug × DB9 Socket

DB9

RS-232—Shielded
Length, ft.	Shield Type	Cord OD	Color		Each
1	Foil	0.24"	Beige	00000000	000000
2 1/2	Foil	0.24"	Beige	00000000	00000
5	Foil	0.24"	Beige	00000000	00000
10	Foil	0.24"	Beige	00000000	00000
15	Foil	0.24"	Beige	00000000	00000
25	Foil	0.24"	Beige	00000000	00000
50	Foil	0.24"	Black	00000000	00000
RS-232—Double Shielded
1	Braid, Foil	0.24"	Beige	00000000	00000
2 1/2	Braid, Foil	0.24"	Beige	00000000	00000
5	Braid, Foil	0.24"	Beige	00000000	00000
6	Braid, Foil	0.25"	Gray	0000000	00000
10	Braid, Foil	0.25"	Gray	0000000	00000
12	Braid, Foil	0.24"	Beige	00000000	00000
15	Braid, Foil	0.24"	Beige	00000000	00000
25	Braid, Foil	0.24"	Beige	00000000	00000
50	Braid, Foil	0.24"	Beige	00000000	000000

DB9 Socket × DB9 Socket

Reversible Mounting Hardware

DB9

RS-232—Shielded
Length, ft.	Shield Type	Cord OD	Features	Color		Each
1	Foil	0.24"	Reversible Mounting Hardware	Beige	00000000	000000
2 1/2	Foil	0.24"	Reversible Mounting Hardware	Beige	00000000	00000
5	Foil	0.24"	Reversible Mounting Hardware	Beige	00000000	00000
10	Foil	0.24"	Reversible Mounting Hardware	Beige	00000000	00000
15	Foil	0.24"	Reversible Mounting Hardware	Beige	00000000	00000
25	Foil	0.24"	Reversible Mounting Hardware	Beige	00000000	00000
Null Modem—Shielded
6	Foil	0.16"	__	Beige	0000000	0000
10	Foil	0.16"	__	Beige	0000000	00000

DB15 Plug × DB15 Plug

DB15

RS-232—Shielded
Length, ft.	Shield Type	Cord OD	Color		Each
1	Foil	0.27"	Beige	00000000	000000
2 1/2	Foil	0.27"	Beige	00000000	00000
5	Foil	0.27"	Beige	00000000	00000
10	Foil	0.27"	Beige	00000000	00000
15	Foil	0.27"	Beige	00000000	00000
25	Foil	0.27"	Beige	00000000	00000
50	Foil	0.27"	Beige	00000000	00000
RS-232—Double Shielded
1	Braid, Foil	0.28"	Beige	00000000	00000
2 1/2	Braid, Foil	0.28"	Beige	00000000	00000
5	Braid, Foil	0.28"	Beige	00000000	00000
10	Braid, Foil	0.28"	Gray	0000000	00000
15	Braid, Foil	0.28"	Beige	00000000	00000
25	Braid, Foil	0.28"	Beige	00000000	000000
50	Braid, Foil	0.28"	Beige	00000000	000000

DB15 Plug × DB15 Socket

DB15

RS-232—Shielded
Length, ft.	Shield Type	Cord OD	Color		Each
1	Foil	0.27"	Beige	00000000	000000
2 1/2	Foil	0.27"	Beige	00000000	00000
5	Foil	0.27"	Beige	00000000	00000
10	Foil	0.27"	Beige	00000000	00000
15	Foil	0.27"	Beige	00000000	00000
25	Foil	0.27"	Beige	00000000	00000
50	Foil	0.27"	Beige	00000000	00000
RS-232—Double Shielded
1	Braid, Foil	0.28"	Beige	00000000	00000
2 1/2	Braid, Foil	0.28"	Beige	00000000	00000
5	Braid, Foil	0.28"	Beige	00000000	00000
10	Braid, Foil	0.28"	Gray	0000000	00000
15	Braid, Foil	0.28"	Beige	00000000	00000
25	Braid, Foil	0.28"	Beige	00000000	00000
50	Braid, Foil	0.28"	Beige	00000000	000000

DB15 Socket × DB15 Socket

Reversible Mounting Hardware

DB15

RS-232—Shielded
Length, ft.	Shield Type	Cord OD	Features	Color		Each
1	Foil	0.27"	Reversible Mounting Hardware	Beige	00000000	000000
2 1/2	Foil	0.27"	Reversible Mounting Hardware	Beige	00000000	00000
5	Foil	0.27"	Reversible Mounting Hardware	Beige	00000000	00000
10	Foil	0.27"	Reversible Mounting Hardware	Beige	00000000	00000
15	Foil	0.27"	Reversible Mounting Hardware	Beige	00000000	00000
25	Foil	0.27"	Reversible Mounting Hardware	Beige	00000000	00000

DB25 Plug × DB25 Plug

DB25

RS-232—Shielded
Length, ft.	Shield Type	Cord OD	Color		Each
6	Foil	0.28"	Beige	0000000	000000
10	Foil	0.28"	Beige	0000000	00000
Parallel Port—Shielded
1	Foil	0.3"	Beige	00000000	00000
2 1/2	Foil	0.3"	Beige	00000000	00000
5	Foil	0.3"	Beige	00000000	00000
15	Foil	0.3"	Beige	00000000	00000
25	Foil	0.3"	Beige	00000000	00000
50	Foil	0.3"	Beige	00000000	000000
Parallel Port—Double Shielded
1	Braid, Foil	0.32"	Beige	00000000	00000
2 1/2	Braid, Foil	0.32"	Beige	00000000	00000
5	Braid, Foil	0.32"	Beige	00000000	00000
6	Braid, Foil	0.32"	Beige	00000000	00000
10	Braid, Foil	0.32"	Beige	00000000	00000
12	Braid, Foil	0.32"	Beige	00000000	00000
15	Braid, Foil	0.32"	Beige	00000000	00000
25	Braid, Foil	0.32"	Beige	00000000	00000
50	Braid, Foil	0.32"	Beige	00000000	000000

DB25 Plug × DB25 Socket

DB25

RS-232—Shielded
Length, ft.	Shield Type	Cord OD	Color		Each
6	Foil	0.28"	Beige	0000000	000000
10	Foil	0.28"	Beige	0000000	00000
Parallel Port—Shielded
1	Foil	0.3"	Beige	00000000	00000
2 1/2	Foil	0.3"	Beige	00000000	00000
5	Foil	0.3"	Beige	00000000	00000
15	Foil	0.3"	Beige	00000000	00000
25	Foil	0.3"	Beige	00000000	00000
50	Foil	0.3"	Beige	00000000	000000
Parallel Port—Double Shielded
1	Braid, Foil	0.32"	Beige	00000000	00000
2 1/2	Braid, Foil	0.32"	Beige	00000000	00000
5	Braid, Foil	0.32"	Beige	00000000	00000
6	Braid, Foil	0.32"	Beige	00000000	00000
10	Braid, Foil	0.32"	Beige	00000000	00000
12	Braid, Foil	0.32"	Beige	00000000	00000
15	Braid, Foil	0.32"	Beige	00000000	00000
25	Braid, Foil	0.32"	Beige	00000000	000000
50	Braid, Foil	0.32"	Beige	00000000	000000

DB25 Socket × DB25 Socket

Reversible Mounting Hardware

DB25

Parallel Port—Shielded
Length, ft.	Shield Type	Cord OD	Features	Color		Each
1	Foil	0.3"	Reversible Mounting Hardware	Beige	00000000	000000
2 1/2	Foil	0.3"	Reversible Mounting Hardware	Beige	00000000	00000
5	Foil	0.3"	Reversible Mounting Hardware	Beige	00000000	00000
10	Foil	0.3"	Reversible Mounting Hardware	Beige	00000000	00000
15	Foil	0.3"	Reversible Mounting Hardware	Beige	00000000	00000
25	Foil	0.3"	Reversible Mounting Hardware	Beige	00000000	00000

DB25 Plug × Centronics 36 Plug


DB25 Plug × Centronics 36 Plug	DB25
DB25 Plug × Centronics 36 Plug	Centronics 36

Parallel Port—Shielded
Length, ft.	Shield Type	Cord OD	Color		Each
6	Foil	0.31"	Gray	0000000	000000
10	Foil	0.31"	Gray	0000000	00000

D-Sub Connectors


Straight	DB9
Straight	DB15

Assemble DB and HD connectors to replace worn out connectors.

Shielded connectors prevent electromagnetic interference.

Connectors with wire leads come with cable already attached. Each wire lead is a separate color for easy identification and they are labeled with the pin that they are connected to. Those with DB9, DB15, and DB25 connections are RS-232, so they transmit data between computers and equipment. The thumb screws on these connectors have slots so they can be tightened with a screwdriver in tight spaces.

For technical drawings and 3-D models, click on a part number.

Straight Connectors—Wire Leads Connection

				DB9		DB15		DB25
Wire Lead Gauge	Cable OD	Cable Lead Lg., ft.	Housing Material		Each		Each		Each
Shielded Plug
28	0.2"	5	Plastic	00000000	000000	000000	00	000000	00
28	0.2"	10	Plastic	00000000	00000	000000	00	000000	00
28	0.2"	25	Plastic	00000000	00000	000000	00	000000	00
28	0.24"	5	Plastic	000000	00	00000000	000000	000000	00
28	0.24"	10	Plastic	000000	00	00000000	00000	000000	00
28	0.24"	25	Plastic	000000	00	00000000	00000	000000	00
28	0.32"	5	Plastic	000000	00	000000	00	00000000	000000
28	0.32"	10	Plastic	000000	00	000000	00	00000000	00000
28	0.32"	25	Plastic	000000	00	000000	00	00000000	00000
Shielded Socket
28	0.2"	5	Plastic	00000000	00000	000000	00	000000	00
28	0.2"	10	Plastic	00000000	00000	000000	00	000000	00
28	0.2"	25	Plastic	00000000	00000	000000	00	000000	00
28	0.24"	5	Plastic	000000	00	00000000	00000	000000	00
28	0.24"	10	Plastic	000000	00	00000000	00000	000000	00
28	0.24"	25	Plastic	000000	00	00000000	00000	000000	00
28	0.32"	5	Plastic	000000	00	000000	00	00000000	00000
28	0.32"	10	Plastic	000000	00	000000	00	00000000	00000
28	0.32"	25	Plastic	000000	00	000000	00	00000000	00000

Mitutoyo 10-Pin to RS-232C Adapters

Convert Mitutoyo 10-pin SPC cables to RS-232C for connection to PCs to import measurement data into Microsoft Excel or any SPC software.

	Computer Connection
Connection Type	Type	Industry Designation	Lg.	Wd.	Ht.	Cord Lg.	Manufacturer Model No.		Each
10-pin Mitutoyo Connector × Computer Connection	DB9	RS-232C	2 3/4"	1 3/4"	1"	40"	264-007	0000000	0000000