JJ-E20711-S1 - Siig RS-232/422/485 SERIAL SIIG JJ-E20711-S1 | Aztek Computers
29+Years
SKU: T5R6LDM18L |  Mfg. Part: JJ-E20711-S1  | UPC: 662774044095  | 
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JJ-E20711-S1 - Siig RS-232/422/485 SERIAL SIIG JJ-E20711-S1 SERIAL ADAPTER ADDS 232 RS-232 SERIAL PO

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$44.34  $59.86
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Product Overview

The SIIG's PCIe serial card JJ-E20711-S1 can be installed into an available PCI Express slot on the computer's motherboard, to provide two 9-pin RS-232 serial ports. It offers a convenient solution for connecting modern or legacy equipment to newer computer systems that do not have RS-232 or parallel ports

Expert Overview

The SIIG JJ-E20711-S1 is a PCIe serial card designed to integrate two 9-pin RS-232 serial ports into a desktop computer. This adapter addresses the need for serial connectivity in modern systems that often lack native RS-232 or parallel ports. It is suitable for IT professionals and businesses requiring reliable connections for legacy or specialized equipment. Each port supports data transfer rates up to 250Kbps and features on-chip 256-byte FIFO buffers for both transmit and receive paths. The card is compliant with PCI Express 2.0 Gen 1 and can be installed into any available PCIe slot, regardless of lane width. Its dual-profile design, including mounting brackets, ensures compatibility with both full-size and low-profile system chassis. This solution facilitates connectivity for point-of-sale (POS) systems, industrial control devices, security equipment, and various printers or scanners, including those requiring 5V or 12V power output via configurable jumpers.

Technical Specifications

  • Adds two 9-pin RS-232 serial port to PCIe enabled desktop computers, each port supports data transfer rate up to 250Kbps, Compliant with PCI Express 2.0 Gen 1
  • ✅ Single-lane (x1) PCI Express End-point Controller with PHY integrated; Full serial modem control with hardware and software flow control; Supports 5, 6, 7, 8 and 9-bit serial formats, and Even, Odd, None, Space and Mark parity; On chip 256-byte FIFO buffers in transmit and receive path for each serial port
  • ✅ Works as either standard RS-232 port or with 5V or 12V power output for devices that require power (such as handheld scanners, table scanners, POS displays and many more). Configurable via jumpers
  • ✅ Supports PCI Bus Power Management Interface Specification Revision 1.2; Dual profile design installs into both full-size and low-profile system chassis with the included mounting brackets; Installs into any PCI Express slot of any lane width
  • ✅ Perfect solution to connect with POS system, industrial testing and control device, security system, logistic management equipment, printers, scanners, et

Product Details

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  • Siig
  • JJ-E20711-S1
  • B08ZXQLZ4T
  • 662774044095
  • New
  • 1 lbs
  • 5 X 1 X 3
  • Aug 03, 2026
  • Mar 06, 2021
  • Yes
  • CN
Product Identifiers: Brand: Siig • Part #: JJ-E20711-S1 • UPC: 662774044095 • ASIN: B08ZXQLZ4T • Category: Port Expansion Cards • TAA Compliant

Frequently Asked Questions

What type of PCI Express slot is required for installation?

The SIIG JJ-E20711-S1 installs into any PCI Express slot of any lane width. It is compliant with PCI Express 2.0 Gen 1.

What is the maximum data transfer rate supported by each serial port?

Each 9-pin RS-232 serial port on this card supports a data transfer rate of up to 250Kbps.

Can this card power connected serial devices?

Yes, the card can provide 5V or 12V power output for devices that require power, such as handheld scanners or POS displays. This feature is configurable via jumpers.

What is included for installation in different PC chassis sizes?

The card features a dual-profile design and includes mounting brackets, allowing it to be installed into both full-size and low-profile system chassis.

JJ-E20711-S1 - Siig RS-232/422/485 SERIAL SIIG JJ-E20711-S1 SERIAL ADAPTER ADDS 232 RS-232 SERIAL PO

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$44.34