Digi Modem Adapter
SKU: 18549000254

Digi Modem Adapter

Sale price$75.02 Regular price$83.36
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Description

Digi Modem AdapterDigi Modem Adapter 8 Pack (RJ 45 to DB 9 Male) The Digi Modem Adapter is a versatile, durable solution designed to bridge modern Ethernet networks with legacy serial equipment. This 8 pack of RJ 45 to 9 pin DB 9 Male adapters gives you reliable, plug and play connectivity for a wide range of devices, from industrial machines to networking gear that still relies on classic serial ports. Built for dependable performance in busy environments, these

Digi Modem Adapter – 8 Pack (RJ-45 to DB-9 Male)

The Digi Modem Adapter is a versatile, durable solution designed to bridge modern Ethernet networks with legacy serial equipment. This 8-pack of RJ-45 to 9-pin DB-9 Male adapters gives you reliable, plug-and-play connectivity for a wide range of devices, from industrial machines to networking gear that still relies on classic serial ports. Built for dependable performance in busy environments, these adapters help you create stable links between network cables and serial devices with minimal hassle. Whether you’re outfitting a lab, data center, or remote site, this 8-pack delivers value, convenience, and compatibility that modern users demand.

  • 8-pack value: With eight adapters in each package, you gain ample replacements and spares for multiple workstations, cabinets, or field deployments. This bulk set helps you maintain your fleet of devices without constantly reordering, reducing downtime and simplifying inventory management.
  • RJ-45 to DB-9 Male design: The compact, purpose-built configuration provides a clear path between Ethernet-based networks and legacy serial devices. The RJ-45 connector handles network-side interfacing, while the 9-pin DB-9 Male port delivers compatibility with classic serial interfaces, enabling seamless data transmission.
  • Durable, reliable construction: Engineered for everyday use in demanding environments, these adapters resist wear and tear from frequent connections and disconnections. The robust design minimizes signal loss and ensures a stable link over time, supporting critical applications where downtime isn’t an option.
  • Plug-and-play convenience: You don’t need extra drivers or software—simply connect the RJ-45 end to the network device and the DB-9 Male end to the serial port, and you’re ready to go. This user-friendly approach saves time during deployment and reduces the chance of setup errors.
  • Compact, versatile portability: Small and lightweight, these adapters are easy to store and transport. They slip easily into toolkits, racks, or drawers, so you can deploy them quickly at a moment’s notice and keep critical connections within reach.

Technical Details of Digi Modem Adapter

  • Pack size: 8 adapters per package
  • Connector 1: RJ-45
  • Connector 2: DB-9 Male (9-pin D-sub)
  • Product type: RJ-45 to 9-pin serial adapter
  • Application: Enables a reliable link between Ethernet-based networks and legacy serial devices, supporting cross-domain connectivity in lab, industrial, and data-center environments

how to install Digi Modem Adapter

Installing the Digi Modem Adapter is straightforward and designed for quick setup with minimal disruption. Before you begin, power down the devices involved to prevent any electrical issues during connection. Follow these simple steps to establish a stable Ethernet-to-serial bridge:

  • Identify the ports: locate the RJ-45 network port on your device or switch and the DB-9 serial port on the target equipment. Confirm that the devices you’re connecting can communicate over a serial interface via the adapter.
  • Connect the RJ-45 side: insert the RJ-45 connector of the Digi Modem Adapter into the corresponding network port on the device or network equipment. Ensure the connection is snug and oriented correctly to avoid loose connections that could cause intermittent data loss.
  • Attach the DB-9 Male end: plug the 9-pin DB-9 Male connector into the serial port of the device you’re interfacing with. If a gender or pinout mismatch is suspected, consult the device’s documentation to confirm the appropriate serial configuration and ensure the adapter pins align properly.
  • Verify alignment and power up: double-check that both connections are secure. Restore power to the devices, and monitor for link indicators or status LEDs that confirm a successful connection. If your system requires configuration, set the appropriate baud rate, parity, data bits, and stop bits according to your serial device’s specifications.
  • Test data transmission: run a simple test to verify data flow between the Ethernet-connected device and the serial peripheral. Check for successful command responses, data integrity, and any error indicators. If issues arise, reseat the connectors and recheck settings, as a fresh connection often resolves intermittent problems.

Note: The Digi Modem Adapter is a passive adapter, meaning it does not require drivers. It simply provides the physical bridge between RJ-45 and DB-9 interfaces, so the setup relies on proper port configuration on the connected devices. For critical deployments, keep spare adapters on hand from the 8-pack to minimize downtime caused by a loose connection or damaged connector.

Frequently asked questions

  • What is the Digi Modem Adapter used for? It is a passive RJ-45 to DB-9 serial adapter designed to bridge Ethernet networks with legacy serial devices. It enables data exchange between modern network equipment and older serial equipment without requiring software or driver installation.
  • How many adapters come in the package? The product is sold as an 8-pack, giving you eight individual adapters for multiple devices, spare units, or future expansion.
  • Do I need drivers or software to use this adapter? No. This is a passive connector that does not require drivers. Proper operation depends on correct port configuration on the devices you’re connecting.
  • Can I use this adapter with USB-to-serial converters? The Digi Modem Adapter is specifically designed for RJ-45 to DB-9 serial connections. If you’re using a USB-to-serial converter, you would typically connect the serial side to the converter’s serial port and the RJ-45 side to a compatible Ethernet device as directed by your hardware’s documentation. Always verify compatibility with your equipment before use.
  • Where should I store the extra adapters? Store the remaining adapters in a clean, dry environment, ideally in a labeled container or a dedicated parts drawer. Keeping spares handy helps you respond quickly to network maintenance or hardware replacements.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 18549000254

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Reviewed in the United States on February 10, 2026
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4everirish
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★★★★★ 1
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