In observance of Thanksgiving, DataPro will be closed on Thursday, November 27th. Orders placed after 12:00 PM PST on Wednesday, November 26th will be processed on Friday, November 28th, 2025.
In observance of Christmas, DataPro will be closed on Thursday, December 25th. Orders placed after 12:00 PM PST on Wednesday, December 24th will be processed on Friday, December 26th, 2026.
In observance of Christmas and New Years, DataPro will be closed on December 25th and January 1st. Orders placed after 12:00 PM PST on Wednesday, December 24th will be processed on Friday, December 26th, 2025, and orders placed after 12:00 PM PST on Wednesday, December 31st will be processed on Friday, January 2nd, 2026.
In observance of New Year’s Day, DataPro will be closed on Thursday, January 1st. Orders placed after 12:00 PM PST on Wednesday, December 31st will be processed on Friday, January 2nd, 2026.
In observance of Memorial Day, DataPro will be closed on Monday, May 25th. Orders placed after 12:00 PM PDT on Friday, May 22nd will be processed on Tuesday, May 26th, 2026.
In observance of Independence Day, DataPro will be closed on Friday, July 3rd. Orders placed after 12:00 PM PDT on Thursday, July 2nd will be processed on Monday, July 6th, 2026.
In observance of Labor Day, DataPro will be closed on Monday, September 7th. Orders placed after 12:00 PM PDT on Friday, September 4th will be processed on Tuesday, September 8th, 2026.
In observance of Thanksgiving, DataPro will be closed on Thursday, November 26th. Orders placed after 12:00 PM PST on Wednesday, November 25th will be processed on Friday, November 27th, 2026.
In observance of Christmas, DataPro will be closed on Friday, December 25th. Orders placed after 12:00 PM PST on Thursday, December 24th will be processed on Monday, December 28th, 2026.
In observance of New Year’s Day, DataPro will be closed on Friday, January 1st. Orders placed after 12:00 PM PST on Thursday, December 31st will be processed on Monday, January 4th, 2027.
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Serial & Parallel

DataPro Product Catalog > Serial & Parallel
DataPro has all the cables and electronics you need to keep your serial and parallel hardware up and running. We keep a huge variety of RS232 and IEEE-1284 cables in stock, and have thousands of configurations on file for custom assemblies.

We also stock many electronic buffers, convertors, and switches for flexible solutions to interface problems, all in the quest to keep your old equipment functional and working for you.
Serial & Parallel > Serial Cables
   For serial modem and null-modem cables, adaptors, and extensions, our selection and stock are unbeatable.
  > Parallel Cables
   25-pin and Centronics cables, stocked in numerous lengths and configurations, are available for all your parallel port connections. We also carry the Mini-Centronics connector for many older HP printer models.
  > Serial Electronics
   Convert your RS232 devices to RS422, RS485, parallel, or USB with our converters; or optimize your interface configuration with our auto-switches and buffer boxes.
  > Parallel Electronics
   We proudly carry all the auto-switches, print servers, USB and serial converters, and other electronics you need to take care of all your parallels.