Digi International
SKU: EP-USB-4S
Digi International EP-USB-4S 4-Port Serial Adapter
4-port serial adapter adds RS-232/422/485 connectivity via USB
Overview
Manufacturer-verified compatible cameras, recorders, mounts, accessories, and licenses for this product. Adjust quantities and add the entire bundle to your cart in one click.
Overview
Questions about this product? Free pre-sales support from a senior specialist — product questions, compatibility checks, BOM quotes, price confirmation — typically answered within one business day. Need camera placement or system design work? Engineering time is $175 per hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back on their order.
The Digi EP-USB-4 is a managed USB-to-serial media converter providing four independent RS232 ports. This adapter bridges legacy serial devices to modern computing environments, enabling communication with industrial equipment, networking devices, and instrumentation that require DB-9 RS232 connectivity. Suitable for system integrators, IT managers, and field technicians managing mixed-protocol deployments.
The EP-USB-4 connects via USB host interface and supports RS232 protocol across all four ports. Compatible with Windows, Linux, and macOS systems requiring serial device access. Typical applications include device configuration, remote management, and protocol conversion in security, telecom, and industrial automation environments.
Manufacturer-verified compatible cameras, recorders, mounts, accessories, and licenses for this product. Adjust quantities and add the entire bundle to your cart in one click.
Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.
Fixed scope • Fixed price