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Green M.2 B+M key card with eight DB9 serial ports

Syba

Syba SI-ADA15071 8-Port RS-232 DB9 Serial M.2 B+M Key Controller Card

SKU CH-77A4-0CZNH MPN SI-ADA15071

Adds eight RS-232 DB9 serial ports via an M.2 B+M key slot using the XR17V358 chipset for up to 31.25 Mbps data rates

  • External connectors8 x Serial Ports
  • Supported operating systemsWindows 10 or Higher Ubuntu 19.04 or Higher
  • Product typeController Card
  • Key featuresElevate your serial communication capabilities with 8 Port D
  • In the box8 Port Serial DB9 M.2 B+M Key Module Driver CD x1 Manual x1
  • 8 independent UARTs via XR17V358 chipset
  • 256-byte TX/RX FIFOs for data integrity
  • Data rates up to 31.25 Mbps supported
  • PCIe 2.0 Gen 1 single-lane interface
  • 16 multi-purpose I/Os for peripherals

Eight-port RS-232 M.2 controller

The Syba SI-ADA15071 is a new add-on card that provides eight DB9 serial ports through an M.2 B+M key interface. It uses the XR17V358 chipset to deliver eight independent 16550-compatible UARTs with 256-byte FIFOs and data rates up to 31.25 Mbps. The card connects via a single-lane PCIe 2.0 Gen 1 link at 2.5 GT/s and includes a driver CD and manual.

Industrial and legacy connectivity

This card suits engineers and system integrators who need to connect multiple RS-232 devices such as PLCs, modems or scientific instruments to a modern platform with an available M.2 slot. It supports Windows 10 or higher and Ubuntu 19.04 or higher. Builders without a free M.2 B+M key slot or who require USB or PCIe bracket mounting should look at other form factors.

M.2 B+M key interface requirement

The single specification that decides compatibility is the presence of an M.2 B+M key slot wired for PCIe signalling. The controller operates as a PCIe 2.0 x1 device and will not function in slots dedicated to other signalling types or keyed differently. Verify the motherboard manual before purchase.

How it compares

Measured against everything we stock in PCIe Expansion Cards, at today’s prices. Recalculated every night.

Price $56.99
Pricier than about 74% of the 891 comparable items (median $30.99).

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Specifications

Product
Brand nameSYBA
Model nameSI-ADA15071
Product typeController Card
Ports & slots
External connectors8 x Serial Ports
Size & build
Shipping weight0.09 kg
Package size140 × 102 × 25 mm
Compatibility
Supported operating systemsWindows 10 or Higher
Ubuntu 19.04 or Higher
In the box
In the box8 Port Serial DB9 M.2 B+M Key Module
Driver CD x1
Manual x1

Questions about this item

How can I verify the XR17V358 chipset is functioning after installing the SI-ADA15071 card?

Check Device Manager for eight new COM ports under Ports (COM & LPT); each should show the XR17V358 UART with 256-byte FIFOs and report a PCIe 2.0 Gen 1 link at 2.5 GT/s.

What comes with the SI-ADA15071 and what must I source separately?

The box contains the 8-port serial DB9 M.2 B+M key module, a driver CD, and a manual; you must supply an M.2 B+M key slot and DB9 cables for your devices.

Which operating system version should I choose for the SI-ADA15071?

Use Windows 10 or higher, or Ubuntu 19.04 or higher; both are officially supported for the XR17V358 chipset and its 8 UART channels.

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