B2B Tech Supply
  • Networking
    • Transmission Specialty Hardware
  • Video Surveillance
    • Security Cameras
    • Surveillance Video Recorders
    • Video Surveillance Prepackaged Kits
    • IP Surveillance Video Recording Software
    • CMS, Mobile and Video Analytics Software
    • Video Surveillance Keyboards and Joysticks
    • Video Encoders and Decoders
    • Power
    • License Plate Capture and Recognition
  • Access Control
    • Access Control Systems
    • Access Control Credentials
    • Access Control Keypads
    • Exit Devices, Buttons and Switches
    • Locking Devices
  • Alarm Systems
    • EDGE Series Systems and Components
    • GC2e Series Systems and Components
    • Rely Series Control Panels and Kits
    • Motion Sensors
    • Contacts and Switches
    • Glass Break and Shock Sensors
    • Alarm System Notification Devices
    • Push Buttons, Disconnect Cords and Sensors
    • Personal Safety and Alarm Systems
    • Driveway Alert Systems
    • STI Alarms and Chimes
    • STI Alarm and Chime Accessories
    • Potter Door Annunciators and People Counters
  • Intercom
    • Telephone Entry Intercom Systems
  • Push Buttons
    • 3-in-1 Button Kits
    • Abort Buttons
    • Custom Buttons
    • Emergency Buttons
    • Emergency Exit Buttons
    • Emergency Power Off Buttons
    • Emergency Stop Buttons
    • Evacuation Buttons
    • Exit Buttons
    • Fire Buttons
    • Fuel Pump Shut-Down Buttons
    • HVAC Shut-Down Buttons
    • Lockdown Buttons
    • No Text Buttons
    • Push to Exit Buttons
    • Alert Point Buttons
    • Global Reset Series Buttons
    • Universal Buttons
    • Button Covers
    • Button Enclosures
    • Button Accessories
    • Spanish Buttons
  • More
    • AV / Automation
    • Fire and Safety
    • Tools
    • Boxes, Cabinets and Enclosures
    • 2GIG Accessories
    • CG3/GC3e Radios and Antennas
    • Dormakaba RCI Electromagnetic Locks
    • Dormakaba RCI Electric Strikes
    • Dormakaba RCI Electric Locks
    • Dormakaba RCI Power Supplies
    • Dormakaba RCI Switches
    • Dormakaba RCI Keypads & Readers
    • Dormakaba RCI Exit Devices
    • Dormakaba RCI Specialty Locks
    • Linear Access Control
    • Linear Audio/Video Distribution
    • Linear Gate Operators
    • Linear Intercom & Communication Solutions
    • Linear Radio Control
    • Linear Security Solutions
    • Linear Video Surveillance
    • Seco-Larm Access Control
    • Seco-Larm Enforcer Video
    • Seco-Larm CCTV Accessories
    • Seco-Larm RF Wireless
    • Seco-Larm Burglar Security
    • Seco-Larm Audio/Video
    • Seco-Larm Vehicle Security
    • STI Accessories
    • STI Services
    • Deals of the Week
  • Frequently Asked Questions
  • Privacy Policy
  • Returns
  • Delivery Information
  • Sign in
  • Register
  • US Dollars
Vertical Categories
B2B Tech Supply
0
Over 500,000 items available for wholesale purchase.
  • My Account
    • Sign in
    • Register
  • Wish Lists
  • Compare
  • Check out
B2B Tech Supply
  • Hello, sign in My Account
    • Sign in
    • Register
  • My Cart

    0 items $0.00
All Categories
  • Networking
    • Transmission Specialty Hardware
  • Video Surveillance
    • Security Cameras
    • Surveillance Video Recorders
    • Video Surveillance Prepackaged Kits
    • IP Surveillance Video Recording Software
    • CMS, Mobile and Video Analytics Software
    • Video Surveillance Keyboards and Joysticks
    • Video Encoders and Decoders
    • Power
    • License Plate Capture and Recognition
  • Access Control
    • Access Control Systems
    • Access Control Credentials
    • Access Control Keypads
    • Exit Devices, Buttons and Switches
    • Locking Devices
  • Alarm Systems
    • EDGE Series Systems and Components
    • GC2e Series Systems and Components
    • Rely Series Control Panels and Kits
    • Motion Sensors
    • Contacts and Switches
    • Glass Break and Shock Sensors
    • Alarm System Notification Devices
    • Push Buttons, Disconnect Cords and Sensors
    • Personal Safety and Alarm Systems
    • Driveway Alert Systems
    • STI Alarms and Chimes
    • STI Alarm and Chime Accessories
    • Potter Door Annunciators and People Counters
  • Intercom
    • Telephone Entry Intercom Systems
  • Push Buttons
    • 3-in-1 Button Kits
    • Abort Buttons
    • Custom Buttons
    • Emergency Buttons
    • Emergency Exit Buttons
    • Emergency Power Off Buttons
    • Emergency Stop Buttons
    • Evacuation Buttons
    • Exit Buttons
    • Fire Buttons
    • Fuel Pump Shut-Down Buttons
    • HVAC Shut-Down Buttons
    • Lockdown Buttons
    • No Text Buttons
    • Push to Exit Buttons
    • Alert Point Buttons
    • Global Reset Series Buttons
    • Universal Buttons
    • Button Covers
    • Button Enclosures
    • Button Accessories
    • Spanish Buttons
  • More
    • AV / Automation
    • Fire and Safety
    • Tools
    • Boxes, Cabinets and Enclosures
    • 2GIG Accessories
    • CG3/GC3e Radios and Antennas
    • Dormakaba RCI Electromagnetic Locks
    • Dormakaba RCI Electric Strikes
    • Dormakaba RCI Electric Locks
    • Dormakaba RCI Power Supplies
    • Dormakaba RCI Switches
    • Dormakaba RCI Keypads & Readers
    • Dormakaba RCI Exit Devices
    • Dormakaba RCI Specialty Locks
    • Linear Access Control
    • Linear Audio/Video Distribution
    • Linear Gate Operators
    • Linear Intercom & Communication Solutions
    • Linear Radio Control
    • Linear Security Solutions
    • Linear Video Surveillance
    • Seco-Larm Access Control
    • Seco-Larm Enforcer Video
    • Seco-Larm CCTV Accessories
    • Seco-Larm RF Wireless
    • Seco-Larm Burglar Security
    • Seco-Larm Audio/Video
    • Seco-Larm Vehicle Security
    • STI Accessories
    • STI Services
    • Deals of the Week
  • Home
  • Frequently Asked Questions
  • Privacy Policy
  • Returns
  • Delivery Information
  • Home
  • More
  • Seco-Larm Audio/Video
  • USB
  • ST-L0521-TUQ Seco-Larm USB Keystone Charger
All Categories
  • Networking
    • Transmission Specialty Hardware
  • Video Surveillance
    • Security Cameras
    • Surveillance Video Recorders
    • Video Surveillance Prepackaged Kits
    • IP Surveillance Video Recording Software
    • CMS, Mobile and Video Analytics Software
    • Video Surveillance Keyboards and Joysticks
    • Video Encoders and Decoders
    • Power
    • License Plate Capture and Recognition
  • Access Control
    • Access Control Systems
    • Access Control Credentials
    • Access Control Keypads
    • Exit Devices, Buttons and Switches
    • Locking Devices
  • Alarm Systems
    • EDGE Series Systems and Components
    • GC2e Series Systems and Components
    • Rely Series Control Panels and Kits
    • Motion Sensors
    • Contacts and Switches
    • Glass Break and Shock Sensors
    • Alarm System Notification Devices
    • Push Buttons, Disconnect Cords and Sensors
    • Personal Safety and Alarm Systems
    • Driveway Alert Systems
    • STI Alarms and Chimes
    • STI Alarm and Chime Accessories
    • Potter Door Annunciators and People Counters
  • Intercom
    • Telephone Entry Intercom Systems
  • Push Buttons
    • 3-in-1 Button Kits
    • Abort Buttons
    • Custom Buttons
    • Emergency Buttons
    • Emergency Exit Buttons
    • Emergency Power Off Buttons
    • Emergency Stop Buttons
    • Evacuation Buttons
    • Exit Buttons
    • Fire Buttons
    • Fuel Pump Shut-Down Buttons
    • HVAC Shut-Down Buttons
    • Lockdown Buttons
    • No Text Buttons
    • Push to Exit Buttons
    • Alert Point Buttons
    • Global Reset Series Buttons
    • Universal Buttons
    • Button Covers
    • Button Enclosures
    • Button Accessories
    • Spanish Buttons
  • More
    • AV / Automation
    • Fire and Safety
    • Tools
    • Boxes, Cabinets and Enclosures
    • 2GIG Accessories
    • CG3/GC3e Radios and Antennas
    • Dormakaba RCI Electromagnetic Locks
    • Dormakaba RCI Electric Strikes
    • Dormakaba RCI Electric Locks
    • Dormakaba RCI Power Supplies
    • Dormakaba RCI Switches
    • Dormakaba RCI Keypads & Readers
    • Dormakaba RCI Exit Devices
    • Dormakaba RCI Specialty Locks
    • Linear Access Control
    • Linear Audio/Video Distribution
    • Linear Gate Operators
    • Linear Intercom & Communication Solutions
    • Linear Radio Control
    • Linear Security Solutions
    • Linear Video Surveillance
    • Seco-Larm Access Control
    • Seco-Larm Enforcer Video
    • Seco-Larm CCTV Accessories
    • Seco-Larm RF Wireless
    • Seco-Larm Burglar Security
    • Seco-Larm Audio/Video
    • Seco-Larm Vehicle Security
    • STI Accessories
    • STI Services
    • Deals of the Week

Best Sellers

SS2231PO-EN STI Yellow Indoor/Outdoor Flush Turn-to-Reset Stopper Station with EMERGENCY POWER OFF Label English

SS2231PO-EN STI Yellow Indoor/Outdoor Flush Turn-to-Reset Stopper Station with EMERGENCY POWER OFF Label English

STI

MSRP: $146.97
Now: $101.00
Was:
1610227 Potter MTW-120MH MT Mini Horn 120VAC - White

1610227 Potter MTW-120MH MT Mini Horn 120VAC - White

Potter

MSRP: $60.00
Now: $54.00
Was:
P82WLS Kantech ioProx 2-Button Transmitter - MIN QTY 10

P82WLS Kantech ioProx 2-Button Transmitter - MIN QTY 10

Kantech

MSRP: $70.00
Now: $56.00
Was:
KIT-E10198 STI Normally Closed Contact for Switch Configuration 0, 1, 3 and 4

KIT-E10198 STI Normally Closed Contact for Switch Configuration 0, 1, 3 and 4

STI

MSRP:
Now: $14.00
Was:
SS2229HV-EN STI Yellow Indoor Only Flush or Surface Turn-to-Reset (Illuminated) Stopper Station with HVAC SHUT DOWN Label English

SS2229HV-EN STI Yellow Indoor Only Flush or Surface Turn-to-Reset (Illuminated) Stopper Station with HVAC SHUT DOWN Label English

STI

MSRP: $92.17
Now: $69.00
Was:
4890070 Potter LFH-24R Red 520 HZ Low Frequency Sounder

4890070 Potter LFH-24R Red 520 HZ Low Frequency Sounder

Potter

MSRP: $101.00
Now: $78.00
Was:

Stop the Spread of Germs

No Touch and Push Buttons
No Touch and Push Buttons
This cast aluminum touch free button applies NoTouch technology which helps reduce the spread of germs in any public building. To exit, a person must simply wave their hand in front of the device. The infrared will detect the motion and unlatch the time adjustable door.
View Products
Sidebar
ST-L0521-TUQ Seco-Larm USB Keystone Charger
  • ST-L0521-TUQ Seco-Larm USB Keystone Charger

ST-L0521-TUQ Seco-Larm USB Keystone Charger

(No reviews yet) Write a Review

Write a Review

ST-L0521-TUQ Seco-Larm USB Keystone Charger
Seco-Larm
ST-L0521-TUQ Seco-Larm USB Keystone Charger

MSRP:
Now: $23.90
Was:
(You save )
Brand
Seco-Larm
SKU:
ST-L0521-TUQ
UPC:

Adding to cart… The item has been added
Add to Wish List
  • Create New Wish List
  • Facebook
  • Email
  • Print
  • Twitter
  • Pinterest
  • Description
  • 0 Reviews

Features:

  • Snap-in style fits all standard telecommunications wall plates
  • 2.8A Max. output for faster charging
  • Uses the latest USB identification circuit; compatible with most devices
  • Useful for equipment racks, conference rooms, AV systems, planes, boats, RVs, buses, gyms, etc
  • Built-in blue power indicator LED
  • Connect multiple units together to charge multiple devices simultaneously
  • Synchronous rectification, high efficiency
  • Power input with reverse polarity protection diode

The ENFORCER USB Keystone Charger provides power to charge USB devices. It fits all standard telecommunications wall plates and includes an LED power indicator.

Specifications

  • Input voltage - 9~24 VDC
  • Output voltage - 5VDC±5%
  • Output current - 2.8A max.
  • Standby current - <2mA
  • Dimensions - 1-1/16"x13/16"x1-5/8" (17x21x41 mm)

pdficon ST-L0521-TUQ Datasheet

Write a Review

0 Reviews Hide Reviews Show Reviews

  • Related Products
ST-2406-3AEQ Seco-Larm Power Supply/Charger with Enclosure

Seco-Larm

ST-2406-3AEQ Seco-Larm Power Supply/Charger with Enclosure

MSRP:
Now: $78.00
Was:
Features: Automatic recharging of backup batteries Automatic switchover to backup battery if main power is lost or cut Built-in battery short-circuit protection Low-battery cutoff LEDs indicate...
Add to Cart The item has been added
ST-LA130-TTQ Seco-Larm 3A Voltage Converter

Seco-Larm

ST-LA130-TTQ Seco-Larm 3A Voltage Converter

MSRP:
Now: $31.90
Was:
Features: Three models available, providing varying degrees of low-voltage DC output Built-in overload protection Regulated and filtered output Green LED indicates power input Red and Blue LEDs...
Add to Cart The item has been added
ST-LA115-TPQ Seco-Larm 1.5A Voltage Converter

Seco-Larm

ST-LA115-TPQ Seco-Larm 1.5A Voltage Converter

MSRP:
Now: $25.60
Was:
Features:Three models available, providing varying degrees oflow-voltage DC outputBuilt-in overload protectionRegulated and filtered outputGreen LED indicates power input2.1mm DC Plug with pigtail...
Add to Cart The item has been added
ST-1206-1.5AQ Seco-Larm Power Supply Charger 6/12VDC @ 1.5Amp Continuous 2Amp Peak

Seco-Larm

ST-1206-1.5AQ Seco-Larm Power Supply Charger 6/12VDC @ 1.5Amp Continuous 2Amp Peak

MSRP:
Now: $16.90
Was:
Features:Switch selectable (see chart below) DC voltage output. Regulated and filtered output voltage. Short circuit protection. Thermal protection and compensation. Built-in backup battery charger...
Add to Cart The item has been added
ST-LA108-TPQ Seco-Larm 0.8A @ 12VDC Power Converter

Seco-Larm

ST-LA108-TPQ Seco-Larm 0.8A @ 12VDC Power Converter

MSRP:
Now: $21.90
Was:
Features: Three models available, providing varying degrees of low-voltage DC output. Built-in overload protection. Regulated and filtered output. Green LED indicates power input. 2.1mm DC Plug with...
Add to Cart The item has been added
B2B Tech Supply
Addresses : B2B Tech Supply
339 Hicksville Rd. #221
Bethpage, NY 11714
Email: info@b2btechsupply.com

Information

  • Frequently Asked Questions
  • Privacy Policy
  • Returns
  • Delivery Information
  • Terms & Conditions
  • Sitemap

Brands

  • STI
  • Dormakaba
  • Potter
  • Geovision
  • Mier
  • View All

All Categories

  • Networking
  • Video Surveillance
  • Access Control
  • Alarm Systems
  • Intercom
  • View All

Sign Up For Newsletter

Get the latest updates on new products and upcoming sales

© 2025 B2B Tech Supply