Product Description SUNIX IPC-P3104, industrial standard universal PCI serial communication card, allows users to expand four RS-232/422/485 ports on PC-based system. Each serial port achieves data rates up to 921.6 Kbps and utilizes 16C950 UART with an on-chip 128-bytes hardware FIFO buffer for reliable, high-speed serial I/O. With SUNIX patented Auto-Switching RS-422/485 and RS-485 AHDC technology, user can easily manage different serial interfaces selection and RS-485 signal direction control. Under RS-485 mode, the board can connect up to 31 daisy-chained RS-485 devices within a range of 1.2 km. SUNIX serial board supports a wide variety of operating systems, including Windows, Linux, DOS, and UNIX. It is the best serial communicating solution for industrial and harsh environment applications.
Product Description SUNIX IPC-P3104, industrial standard universal PCI serial communication card, allows users to expand four RS-232/422/485 ports on PC-based system. Each serial port achieves data rates up to 921.6 Kbps and utilizes 16C950 UART with an on-chip 128-bytes hardware FIFO buffer for reliable, high-speed serial I/O. With SUNIX patented Auto-Switching RS-422/485 and RS-485 AHDC technology, user can easily manage different serial interfaces selection and RS-485 signal direction control. Under RS-485 mode, the board can connect up to 31 daisy-chained RS-485 devices within a range of 1.2 km. SUNIX serial board supports a wide variety of operating systems, including Windows, Linux, DOS, and UNIX. It is the best serial communicating solution for industrial and harsh environment applications.
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Sunix IPCP3104 PCI 4-Port 3 in 1 RS 232/422/485 Card With DB9M Connector
Product Description SUNIX IPC-P3104, industrial standard universal PCI serial communication card, allows users to expand four RS-232/422/485 ports on PC-based system. Each serial port achieves data rates up to 921.6 Kbps and utilizes 16C950 UART with an on-chip 128-bytes hardware FIFO buffer for reliable, high-speed serial I/O. With SUNIX patented Auto-Switching RS-422/485 and RS-485 AHDC technology, user can easily manage different serial interfaces selection and RS-485 signal direction control. Under RS-485 mode, the board can connect up to 31 daisy-chained RS-485 devices within a range of 1.2 km. SUNIX serial board supports a wide variety of operating systems, including Windows, Linux, DOS, and UNIX. It is the best serial communicating solution for industrial and harsh environment applications.
Product Description SUNIX IPC-P3104, industrial standard universal PCI serial communication card, allows users to expand four RS-232/422/485 ports on PC-based system. Each serial port achieves data rates up to 921.6 Kbps and utilizes 16C950 UART with an on-chip 128-bytes hardware FIFO buffer for reliable, high-speed serial I/O. With SUNIX patented Auto-Switching RS-422/485 and RS-485 AHDC technology, user can easily manage different serial interfaces selection and RS-485 signal direction control. Under RS-485 mode, the board can connect up to 31 daisy-chained RS-485 devices within a range of 1.2 km. SUNIX serial board supports a wide variety of operating systems, including Windows, Linux, DOS, and UNIX. It is the best serial communicating solution for industrial and harsh environment applications.
The all-time low was $67.00 on 10 Feb 2026 — today's price is 17% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 1 June 2026.
Last updated at 01/06/2026 14:52:06
Sunix IPCP3104 PCI 4-Port 3 in 1 RS 232/422/485 Card with DB9M connector, Up to 921.6 Kbps Support Windows, Linux, DOS, and UNIX (LS)
Sunix IPCP3104 PCI 4-Port 3 in 1 RS 232/422/485 Card with DB9M connector, Up to 921.6 Kbps Support Windows, Linux, DOS, and UNIX (LS) | Torstar
(LS) Sunix IPCP3104 PCI 4-Port 3 in 1 RS 232/422/485 Card with DB9M connector, Up to 921.6 Kbps Support Windows, Linux, DOS, and UNIX (LS) | IPCP3104
| Interface | RS-232 |
| Controller | SUNIX SUN2410 (16C950 UART Compatible) |
| BUS | PCI Express Spec 2.0, Single-Lane (x1) |
| No. of Port | 4-port |
| PCB Connector | DB44 Female |
Sunix IPCP3104 PCI 4-Port 3 in 1 RS 232/422/485 Card with DB9M connector, Up to 921.6 Kbps Support Windows, Linux, DOS, and UNIX (LS)
Sunix IPCP3104 PCI 4-Port 3 in 1 RS 232/422/485 Card with DB9M connector, Up to 921.6 Kbps Support Windows, Linux, DOS, and UNIX (LS) | Torstar
(LS) Sunix IPCP3104 PCI 4-Port 3 in 1 RS 232/422/485 Card with DB9M connector, Up to 921.6 Kbps Support Windows, Linux, DOS, and UNIX (LS) | IPCP3104
| Interface | RS-232 |
| Controller | SUNIX SUN2410 (16C950 UART Compatible) |
| BUS | PCI Express Spec 2.0, Single-Lane (x1) |
| No. of Port | 4-port |
| PCB Connector | DB44 Female |
