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    SECO-LARM DE-S104Q ENFORCER — High-Speed USB 2.0 1x4 Extender Installation Manual

    September 08, 2026 3 min read

    Installation manual for the SECO-LARM ENFORCER DE-S104Q High-Speed USB 2.0 1x4 Extender, extending USB over CAT5e/6/7 cable up to 492ft.

    💾 Download Original PDF
    Full text manual (for reference)

    Installation manual for the SECO-LARM ENFORCER DE-S104Q High-Speed USB 2.0 1x4 Extender — extends four USB 2.0 ports over CAT5e/6/7 network cable up to 492ft (150m), ideal for office, security, audio/video, and medical facility installations.

    Overview

    The ENFORCER High-Speed USB 2.0 1x4 Extender creates a one-to-one connection through CAT5e/6/7 network cables, transmitting USB signals up to 492ft (150m). It supports four (4) High-Speed USB 2.0 ports and is compatible with most USB 2.0 devices, making it a good choice for office, security, audio/video, and medical facility applications.

    Features

    • Supports four (4) High-Speed USB 2.0 inputs and one (1) High-Speed USB 2.0 output
    • Compatible with CAT5e/6/7 network cables
    • Transmission range up to 492ft (150m) with CAT6/7 cable
    • Plug and Play
    • Extend transmission further with Gigabit switch support
    • Hot-Plug USB — auto-detects USB type (High-Speed, Full-Speed, and Low-Speed)

    Parts List

    • 1x Transmitter
    • 1x Receiver
    • 1x USB Cable
    • 1x Power supply
    • 1x Manual

    Specifications

    Compliance USB 2.0
    Maximum speed 480Mbps
    Maximum range (CAT5e) Up to 328ft (100m)
    Maximum range (CAT6/6A/7) Up to 492ft (150m)
    Switch extension Supports Gigabit switches
    USB Hot-Plug Yes
    USB-A ports (Transmitter / Receiver) One (1) output port / Four (4) input ports
    Cable CAT5e, CAT6, CAT6A, CAT7
    Power supply (Transmitter) Powered by device
    Power supply (Receiver) 1A @ 5VDC
    Power consumption ≤2W (both Transmitter and Receiver)
    Operating humidity 0~90% (non-condensing)
    Operating temperature -4°~140° F (-20°~60° C)
    Dimensions 3" x 13/16" x 2 1/2" (76 x 21 x 60 mm)
    Weight (Transmitter / Receiver) 4.3-oz (123g) / 4.5-oz (128g)

    Installation

    1. Connect the USB cable to the transmitter and the device you desire USB extension for.
    2. Connect the network cable (CAT5e/6/6A/7) to the transmitter and receiver.
    3. Plug the power supply into the receiver.

    The four (4) ports on the receiver are now operational and ready for use.

    Wiring Configurations

    One-to-one connection: USB devices (keyboard, mouse, webcam, flash drive) connect to the Receiver's USB-A ports; the Receiver connects to the Transmitter via CAT5e (up to 328ft/100m) or CAT6e (up to 492ft/150m); the Transmitter connects via USB-A to the PC. The Receiver is powered by a 5VDC adapter.

    Switch relay connection: Same USB device setup, but the Receiver connects through a Gigabit switch before reaching the Transmitter and PC — allowing longer overall runs via CAT5e/CAT6e segments.

    Troubleshooting

    No response when device is connected Check that the USB drivers are properly installed and updated; check that the network cable is properly connected; reset the receiver by pushing the Reset button.
    Receiver is unstable when connected to external webcam High-powered USB devices require an external power source.

    Compliance & Warranty

    This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that it must not cause harmful interference and must accept any interference received. Users and installers are responsible for ensuring installation complies with all national, state, and local laws and codes.

    California Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. See www.P65Warnings.ca.gov.

    Warranted against defects in material and workmanship for one (1) year from the date of sale to the original customer. SECO-LARM's obligation is limited to repair or replacement of any defective part, transportation prepaid.

    Manufacturer: SECO-LARM U.S.A., Inc., 16842 Millikan Avenue, Irvine, CA 92606 · Phone: (949) 261-2999 / (800) 662-0800 · www.seco-larm.com