We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green PCI expansion card with four serial ports via DB44 connector and metal bracket

SUNIX

SUNIX SER5056A+L 4-port RS-232 PCI expansion card

SKU CH-997T-EF56D MPN SER5056A+L

Adds four RS-232 serial ports via Universal PCI with SUN1999 controller and 128-byte FIFO

  • TypePCI to Serial Port Card
  • SpecificationsSerial Communication -Interface; RS-232 -Controller: SUNIX S
  • FeaturesExpands 4 independent RS-232 serial port with communication
  • DimensionsPCB Dimension: 120 x 68 mm Bracket: Standard 121 mm
  • Adds four RS-232 serial ports for legacy device connectivity
  • SUN1999 controller provides 16C950 UART compatibility with 128 byte FIFO
  • Universal PCI bus supports 3.3V and 5V slots at 33MHz
  • Data rates from 50 bps to 115.2 Kbps with multiple flow control options
  • DB44 female connector with +/-2KV ESD protection per signal HBM

Four RS-232 ports on universal PCI

The SUNIX SER5056A+L is a universal PCI expansion card that adds four independent RS-232 serial ports to a desktop computer. It uses the SUN1999 controller, which is compatible with the 16C950 UART, and supports PCI 3.0, 2.3, 2.2 and 2.1 at 33 MHz on both 3.3 V and 5 V slots.

Suits legacy serial equipment.

This card suits users connecting industrial machinery, point-of-sale hardware or older modems that require DB-44 RS-232 signalling with full hardware flow control. It is not for systems that lack a conventional PCI slot or for applications that need USB, parallel or other interface types.

115.2 Kbps maximum baud rate

Each port operates from 50 bps up to 115.2 Kbps with 128-byte hardware FIFO and configurable data, stop and parity bits. The 115.2 Kbps ceiling determines whether the card can meet the throughput demands of a specific serial device.

Highlights

  • Adds four RS-232 serial ports for legacy device connectivity
  • SUN1999 controller provides 16C950 UART compatibility with 128 byte FIFO
  • Universal PCI bus supports 3.3V and 5V slots at 33MHz
  • Data rates from 50 bps to 115.2 Kbps with multiple flow control options
  • DB44 female connector with +/-2KV ESD protection per signal HBM

Specifications

BrandSUNIX
ModelSER5056A+L
TypePCI to Serial Port Card
SpecificationsSerial Communication
-Interface; RS-232
-Controller: SUNIX SUN1999 (16C950 UART Compatible)
-Bus: Universal PCI 64/32bit 3.3V/5V PCI Ver 3.0, 2.3, 2.2, 2.1
-No. of Port: 4-port
-IRQ & IO: Assigned by System
-FIFO: 128 byte (Hardware)
-Signal: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND, RI
-Baud rate: 50 bps to 115.2 Kbps
-Data bit: 5,6,7,8
-Stop bit: 1,1.5,2
-Parity: None, Even, Odd, Space, Mark
-Flow Control: None, Xon/Xoff, RTS/CTS
-Protection: +/-2KV ESD protection for each signal Human Body Model (HBM)
-PCB connector: DB44 Female
Driver Support
-Windows Client: XP/Vista/7/8/8.1 (X86/
FeaturesExpands 4 independent RS-232 serial port with communication speeds up to 115.2Kbps.
High reliability SUN1999 16C950 compatible UART controller on-board.
Compliance with PCI 33MHz Ver. 3.0/2.3/2.2./2.1 specification.
Supports both 64-bit & 32-bit PCI bus slot and 3.3V & 5V power.
On-chip hardware auto flow control to guarantee no data loss.
Built-in +/- 2KV ESD protection for all serial signals.
Plug-n-Play, I/O address and IRQ assigned by BIOS.
Certified by CE, FCC, RoHS, and Microsoft WHQL approval.
Support Microsoft Windows, Linux, and DOS.
DimensionsPCB Dimension: 120 x 68 mm
Bracket: Standard 121 mm
Shipping weight0.42 kg
Package size216 × 168 × 79 mm

Questions about this item

Will the 121 mm bracket and 120 x 68 mm PCB fit a standard PCI slot?

Yes, the 121 mm bracket matches a full-height PCI slot and the 120 x 68 mm PCB sits within standard card dimensions.

How do I connect four serial devices to the single DB44 female connector?

Use a DB44-to-four-DB9 breakout cable; plug it into the onboard DB44 female port and attach each device to a DB9 male end.

Does the SUN1999 controller need a fan or capacitor replacement over time?

No, the SUN1999 16C950-compatible UART has no moving parts and no user-serviceable capacitors.

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.