RS-232 Cable | McMaster-Carr

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139 Products

D-Sub Cords

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

DB9 Plug × DB9 Plug

DB9

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

Shielded—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—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.

	Shield Type	Cord OD	Color		Each
RS-232—Double Shielded



	1	Braid, Foil	0.24"	Beige	7925K439	000000


	2 1/2	Braid, Foil	0.24"	Beige	7925K441	00000
	5	Braid, Foil	0.24"	Beige	7925K442	00000
	6	Braid, Foil	0.25"	Gray	7925K11	00000
	10	Braid, Foil	0.25"	Gray	7925K21	00000
	12	Braid, Foil	0.24"	Beige	7925K443	00000
	15	Braid, Foil	0.24"	Beige	7925K444	00000
	25	Braid, Foil	0.24"	Beige	7925K445	000000
	50	Braid, Foil	0.24"	Beige	7925K446	000000


	RS-232—Shielded



			1	Foil	0.24"	Beige	7925K528	00000


			2 1/2	Foil	0.24"	Beige	7925K529	00000
			5	Foil	0.24"	Beige	7925K531	00000
			10	Foil	0.24"	Beige	7925K532	00000
			15	Foil	0.24"	Beige	7925K533	00000
			25	Foil	0.24"	Beige	7925K534	00000
			50	Foil	0.24"	Black	7925K535	000000

DB9 Plug × DB9 Socket

DB9

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

	Shield Type	Cord OD	Color		Each
RS-232—Double Shielded



	1	Braid, Foil	0.24"	Beige	7925K411	000000


	2 1/2	Braid, Foil	0.24"	Beige	7925K412	00000
	5	Braid, Foil	0.24"	Beige	7925K413	00000
	6	Braid, Foil	0.25"	Gray	7925K12	00000
	10	Braid, Foil	0.25"	Gray	7925K22	00000
	12	Braid, Foil	0.24"	Beige	7925K414	00000
	15	Braid, Foil	0.24"	Beige	7925K415	00000
	25	Braid, Foil	0.24"	Beige	7925K416	00000
	50	Braid, Foil	0.24"	Beige	7925K417	000000


	RS-232—Shielded



			1	Foil	0.24"	Beige	7925K521	00000


			2 1/2	Foil	0.24"	Beige	7925K522	00000
			5	Foil	0.24"	Beige	7925K523	00000
			10	Foil	0.24"	Beige	7925K524	00000
			15	Foil	0.24"	Beige	7925K525	00000
			25	Foil	0.24"	Beige	7925K526	00000
			50	Foil	0.24"	Black	7925K527	00000

DB9 Socket × DB9 Socket

Reversible

Mounting Hardware

DB9

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

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

Reversible Mounting Hardware—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.

	Shield Type	Cord OD	Features	Color		Each
Null Modem—Shielded



	6	Foil	0.16"	—	Beige	7925K31	000000


	10	Foil	0.16"	—	Beige	7925K32	00000


	RS-232—Shielded



			1	Foil	0.24"	Reversible Mounting Hardware	Beige	7925K484	00000


			2 1/2	Foil	0.24"	Reversible Mounting Hardware	Beige	7925K485	00000
			5	Foil	0.24"	Reversible Mounting Hardware	Beige	7925K486	00000
			10	Foil	0.24"	Reversible Mounting Hardware	Beige	7925K487	00000
			15	Foil	0.24"	Reversible Mounting Hardware	Beige	7925K488	00000
			25	Foil	0.24"	Reversible Mounting Hardware	Beige	7925K489	00000

DB9 Plug × Wire Leads


	DB9

Each wire lead is a separate color for easy identification and they are labeled with the pin that they are connected to. The thumb screws on these connectors have slots so they can be tightened with a screwdriver in tight spaces.

Cords with with DB9, DB15, and DB25 connections are RS-232, so they transmit data between computers and equipment.

	Cable OD	Cable Lead Lg., ft.	Housing Material	Features	Color		Each
Shielded



	28	0.2"	5	Plastic	Wire Markers	Black	5188N111	000000


	28	0.2"	10	Plastic	Wire Markers	Black	5188N112	00000
	28	0.2"	25	Plastic	Wire Markers	Black	5188N113	00000

DB9 Socket × Wire Leads


	DB9

Cords with with DB9, DB15, and DB25 connections are RS-232, so they transmit data between computers and equipment.

	Cable OD	Cable Lead Lg., ft.	Housing Material	Features	Color		Each
Shielded



	28	0.2"	5	Plastic	Wire Markers	Black	5188N114	000000


	28	0.2"	10	Plastic	Wire Markers	Black	5188N115	00000
	28	0.2"	25	Plastic	Wire Markers	Black	5188N116	00000

DB15 Plug × DB15 Plug

DB15

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

	Shield Type	Cord OD	Color		Each
RS-232—Double Shielded



	1	Braid, Foil	0.28"	Beige	7925K447	000000


	2 1/2	Braid, Foil	0.28"	Beige	7925K448	00000
	5	Braid, Foil	0.28"	Beige	7925K449	00000
	10	Braid, Foil	0.28"	Gray	7925K81	000000
	15	Braid, Foil	0.28"	Beige	7925K451	000000
	25	Braid, Foil	0.28"	Beige	7925K452	000000
	50	Braid, Foil	0.28"	Beige	7925K453	000000


	RS-232—Shielded



			1	Foil	0.27"	Beige	7925K544	00000


			2 1/2	Foil	0.27"	Beige	7925K545	00000
			5	Foil	0.27"	Beige	7925K546	00000
			10	Foil	0.27"	Beige	7925K547	00000
			15	Foil	0.27"	Beige	7925K548	00000
			25	Foil	0.27"	Beige	7925K549	00000
			50	Foil	0.27"	Beige	7925K551	000000

DB15 Plug × DB15 Socket

DB15

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

	Shield Type	Cord OD	Color		Each
RS-232—Double Shielded



	1	Braid, Foil	0.28"	Beige	7925K418	000000


	2 1/2	Braid, Foil	0.28"	Beige	7925K419	00000
	5	Braid, Foil	0.28"	Beige	7925K421	00000
	10	Braid, Foil	0.28"	Gray	7925K82	00000
	15	Braid, Foil	0.28"	Beige	7925K422	00000
	25	Braid, Foil	0.28"	Beige	7925K423	00000
	50	Braid, Foil	0.28"	Beige	7925K424	000000


	RS-232—Shielded



			1	Foil	0.27"	Beige	7925K536	00000


			2 1/2	Foil	0.27"	Beige	7925K537	00000
			5	Foil	0.27"	Beige	7925K538	00000
			10	Foil	0.27"	Beige	7925K539	00000
			15	Foil	0.27"	Beige	7925K541	00000
			25	Foil	0.27"	Beige	7925K542	00000
			50	Foil	0.27"	Beige	7925K543	00000

DB15 Socket × DB15 Socket


	Reversible Mounting Hardware	DB15

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

	Shield Type	Cord OD	Features	Color		Each
RS-232—Shielded



	1	Foil	0.27"	Reversible Mounting Hardware	Beige	7925K491	000000


	2 1/2	Foil	0.27"	Reversible Mounting Hardware	Beige	7925K492	00000
	5	Foil	0.27"	Reversible Mounting Hardware	Beige	7925K493	00000
	10	Foil	0.27"	Reversible Mounting Hardware	Beige	7925K494	00000
	15	Foil	0.27"	Reversible Mounting Hardware	Beige	7925K495	00000
	25	Foil	0.27"	Reversible Mounting Hardware	Beige	7925K496	00000

DB15 Plug × Wire Leads


	DB15

Cords with with DB9, DB15, and DB25 connections are RS-232, so they transmit data between computers and equipment.

	Cable OD	Cable Lead Lg., ft.	Housing Material	Features	Color		Each
Shielded



	28	0.24"	5	Plastic	Wire Markers	Black	5188N117	000000


	28	0.24"	10	Plastic	Wire Markers	Black	5188N118	00000
	28	0.24"	25	Plastic	Wire Markers	Black	5188N119	00000

DB15 Socket × Wire Leads


	DB15

Cords with with DB9, DB15, and DB25 connections are RS-232, so they transmit data between computers and equipment.

	Cable OD	Cable Lead Lg., ft.	Housing Material	Features	Color		Each
Shielded



	28	0.24"	5	Plastic	Wire Markers	Black	5188N121	000000


	28	0.24"	10	Plastic	Wire Markers	Black	5188N122	00000
	28	0.24"	25	Plastic	Wire Markers	Black	5188N123	00000

DB25 Plug × DB25 Plug

DB25

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

Parallel Cord—Parallel cords connect a computer to a printer.

	Shield Type	Cord OD	Color		Each
Parallel Cord—Double Shielded



	1	Braid, Foil	0.32"	Beige	7925K454	000000


	2 1/2	Braid, Foil	0.32"	Beige	7925K455	00000
	5	Braid, Foil	0.32"	Beige	7925K456	00000
	6	Braid, Foil	0.32"	Beige	7925K554	00000
	10	Braid, Foil	0.32"	Beige	7925K555	00000
	12	Braid, Foil	0.32"	Beige	7925K457	00000
	15	Braid, Foil	0.32"	Beige	7925K458	00000
	25	Braid, Foil	0.32"	Beige	7925K459	000000
	50	Braid, Foil	0.32"	Beige	7925K461	000000


	Parallel Cord—Shielded



			1	Foil	0.3"	Beige	7925K563	00000


			2 1/2	Foil	0.3"	Beige	7925K564	00000
			5	Foil	0.3"	Beige	7925K565	00000
			15	Foil	0.3"	Beige	7925K566	00000
			25	Foil	0.3"	Beige	7925K567	00000
			50	Foil	0.3"	Beige	7925K568	000000


			RS-232—Shielded



					6	Foil	0.28"	Beige	7925K61	00000


					10	Foil	0.28"	Beige	7925K62	00000

DB25 Plug × DB25 Socket

DB25

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

Parallel Cord—Parallel cords connect a computer to a printer.

	Shield Type	Cord OD	Color		Each
Parallel Cord—Double Shielded



	1	Braid, Foil	0.32"	Beige	7925K425	000000


	2 1/2	Braid, Foil	0.32"	Beige	7925K426	00000
	5	Braid, Foil	0.32"	Beige	7925K427	00000
	6	Braid, Foil	0.32"	Beige	7925K552	00000
	10	Braid, Foil	0.32"	Beige	7925K553	00000
	12	Braid, Foil	0.32"	Beige	7925K428	00000
	15	Braid, Foil	0.32"	Beige	7925K429	000000
	25	Braid, Foil	0.32"	Beige	7925K431	000000
	50	Braid, Foil	0.32"	Beige	7925K432	000000


	Parallel Cord—Shielded



			1	Foil	0.3"	Beige	7925K556	00000


			2 1/2	Foil	0.3"	Beige	7925K557	00000
			5	Foil	0.3"	Beige	7925K558	00000
			15	Foil	0.3"	Beige	7925K559	00000
			25	Foil	0.3"	Beige	7925K561	00000
			50	Foil	0.3"	Beige	7925K562	000000


			RS-232—Shielded



					6	Foil	0.28"	Beige	7925K63	00000


					10	Foil	0.28"	Beige	7925K64	00000

DB25 Socket × DB25 Socket


	Reversible Mounting Hardware	DB25

Parallel Cord—Parallel cords connect a computer to a printer.

	Shield Type	Cord OD	Features	Color		Each
Parallel Cord—Shielded



	1	Foil	0.3"	Reversible Mounting Hardware	Beige	7925K497	000000


	2 1/2	Foil	0.3"	Reversible Mounting Hardware	Beige	7925K498	00000
	5	Foil	0.3"	Reversible Mounting Hardware	Beige	7925K499	00000
	10	Foil	0.3"	Reversible Mounting Hardware	Beige	7925K511	00000
	15	Foil	0.3"	Reversible Mounting Hardware	Beige	7925K512	00000
	25	Foil	0.3"	Reversible Mounting Hardware	Beige	7925K513	00000

DB25 Plug × Wire Leads


	DB25

Cords with with DB9, DB15, and DB25 connections are RS-232, so they transmit data between computers and equipment.

	Cable OD	Cable Lead Lg., ft.	Housing Material	Features	Color		Each
Shielded



	28	0.32"	5	Plastic	Wire Markers	Black	5188N124	000000


	28	0.32"	10	Plastic	Wire Markers	Black	5188N125	00000
	28	0.32"	25	Plastic	Wire Markers	Black	5188N126	00000

DB25 Socket × Wire Leads


	DB25

Cords with with DB9, DB15, and DB25 connections are RS-232, so they transmit data between computers and equipment.

	Cable OD	Cable Lead Lg., ft.	Housing Material	Features	Color		Each
Shielded



	28	0.32"	5	Plastic	Wire Markers	Black	5188N127	000000


	28	0.32"	10	Plastic	Wire Markers	Black	5188N128	00000
	28	0.32"	25	Plastic	Wire Markers	Black	5188N129	00000

DB25 Plug × Centronics 36 Plug

DB25

Centronics 36

Parallel Cord—Parallel cords connect a computer to a printer.

	Shield Type	Cord OD	Color		Each
Parallel Cord—Shielded



	6	Foil	0.31"	Gray	7925K51	000000


	10	Foil	0.31"	Gray	7925K52	00000

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.

USB-A Plug × DB9 Plug

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

	Signal Type	Serial Port Interface	Shielding	Shield Type	Color	Includes		Each
USB 2.0—480 Mbit/s Transmission Speed



	2 1/2	Data	RS-422, RS-485	Double Shielded	Braid, Foil	Black	—	8761K14	000000


	5	Data	RS-232	Unshielded	—	Black	Driver CD	5928N11	00000

USB-A Plug × DB25 Socket

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

	Signal Type	Serial Port Interface	Shielding	Shield Type	Color		Each
USB 1.1—12 Mbit/s Transmission Speed



	6	Data	RS-232	Double Shielded	Braid, Foil	Blue	8761K2	000000

USB-C Plug × DB9 Plug

	Signal Type	Shielding	Color		Each
USB 2.0—480 Mbit/s Transmission Speed



	5	Data	Unshielded	Black	8761K422	000000

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
	Electrical Connection	Type	Serial Port Interface	Wd.	Ht.	Cord Lg.	Mfr. Model No.		Each
2 3/4" Long



		10-Pin Mitutoyo Connector	DB9	RS-232	1 3/4"	1"	40"	264-007	1825A12	0000000