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2,500+ results for usb relay

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1-10PC 6-30V Micro USB Relay Module Delay Trigger Cycle Timer Circuit LCD Switch
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Brand New
S$ 6.78 to S$ 61.12
Top-rated sellerTop-rated seller
Was: S$ 7.37 8% off
worldchips (190,393) 99.1%
Buy It Now
Postage not specified
from China
Free returns
5V USB Relay 2 Channel Programmable Computer Control For Smart Home
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Brand New
S$ 11.01
Top-rated sellerTop-rated seller
or Best Offer
ai_smart (65,908) 99.2%
Free International Shipping
from China
Free returns
94 sold
5V USB Relay 2 Channel Programmable Computer Control For Smart Home New
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Brand New
S$ 7.96
Top-rated sellerTop-rated seller
Was: S$ 8.84 10% off
survy2014 (289,800) 99.6%
Buy It Now
Free International Shipping
from China
Free returns
337 sold
1/2/4/8Ch 5V 12V USB Relay Programmable Computer Control Relay For Smart Home
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Brand New
S$ 9.49 to S$ 19.90
Top-rated sellerTop-rated seller
Was: S$ 10.32 8% off
worldchips (190,393) 99.1%
Buy It Now
Postage not specified
from China
Free returns
Micro USB 5V Zigbee Protocol 1/2/4 Channel self-locking Wifi Relay Switch Module
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Brand New
S$ 14.17 to S$ 24.93
Top-rated sellerTop-rated seller
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ai_smart (65,908) 99.2%
Free International Shipping
from China
Free returns
5V USB Relay 2 Channel Programmable Computer Control For Smart Home
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Brand New
S$ 7.47
Top-rated sellerTop-rated seller
Was: S$ 8.12 8% off
worldchips (190,393) 99.1%
or Best Offer
Postage not specified
from China
Free returns
USB 5V DC7-48V 4CH eWeLink Smart WIFI Switch Universal Wireless Relay Module
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Brand New
S$ 13.57 to S$ 17.64
Top-rated sellerTop-rated seller
Was: S$ 14.75 8% off
worldchips (190,393) 99.1%
Buy It Now
Postage not specified
from China
Free returns
USB 5V DC/AC 7-32V Switch Relay Timer Wireless Remote Control Self-Locking
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Brand New
S$ 8.25
Top-rated sellerTop-rated seller
Was: S$ 8.98 8% off
alice1101983 (569,926) 99.5%
or Best Offer
+S$ 5.17 postage
from China
Free returns
5V/10V USB Relay 1/2/4/8 ChProgrammable Computer Control Relay For Smart Home US
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Brand New
S$ 9.26 to S$ 16.92
Top-rated sellerTop-rated seller
Was: S$ 10.06 8% off
alice1101983 (569,926) 99.5%
Buy It Now
+S$ 5.17 postage
from China
LED Trigger Delay Cycle Timer Control Switch Relay Module Micro USB/Type-C 5V
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Brand New
S$ 4.04 to S$ 4.97
Top-rated sellerTop-rated seller
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ai_smart (65,908) 99.2%
Free International Shipping
from China
Free returns
5V LED Relay Module Delay Power Off Disconnect Trigger Delay Cycle Timer Switch
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Brand New
S$ 3.68
Top-rated sellerTop-rated seller
Buy It Now
chips-fans (137,906) 99.5%
Postage not specified
from China
Free returns
5V/12V USB Relay 1/2/4/8 Ch Programmable Computer Control Relay For Smart Home
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Brand New
S$ 11.06 to S$ 19.67
Top-rated sellerTop-rated seller
Buy It Now
chips-fans (137,906) 99.5%
Postage not specified
from China
Free returns
5V USB Relay 1 Channel Programmable Computer Control For Smart Home NEW S
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Brand New
S$ 8.03
Top-rated sellerTop-rated seller
Was: S$ 8.83 9% off
satisfyelectronics (217,506) 99.5%
Buy It Now
+S$ 1.46 postage
from China
Free returns
634 sold
ADVANTECH USB-4761 8-CH RELAY & 8-CH ISOLATED DIGITAL INPUT USB MODULE Sealed
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Brand New
S$ 677.31
gallowayindustrialsupplyco (2,042) 99.5%
or Best Offer
+S$ 60.50 postage
from United States
5V USB Relay 1 Channel Programmable Computer Control For Smart Home
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Brand New
S$ 9.45
Top-rated sellerTop-rated seller
Was: S$ 10.28 8% off
worldchips (190,393) 99.1%
or Best Offer
Postage not specified
from China
Free returns
8 Channel 5V USB Relay Board Module Computer PC Smart Control Switch Controller
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Brand New
S$ 17.51
Top-rated sellerTop-rated seller
or Best Offer
worldchips (190,393) 99.1%
Postage not specified
from China
Free returns
DC 7-32V 1/2/4 Channel USB 5V WIFI Remote Control Relay Switch Module 433MHZ
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Brand New
S$ 9.49 to S$ 14.93
Top-rated sellerTop-rated seller
Was: S$ 10.32 8% off
worldchips (190,393) 99.1%
Buy It Now
Postage not specified
from China
Free returns
2/4/8 Channel 5V 12V Computer USB Control Delay Switch Drive-free Relay Module
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Brand New
S$ 8.48 to S$ 20.30
Top-rated sellerTop-rated seller
Buy It Now
ai_smart (65,908) 99.2%
Free International Shipping
from China
Free returns
UD74B08 8 Channel I/O MultiFunction USB Relay COM Serial Port UART Relay Board
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Brand New
S$ 7.90 to S$ 36.66
Top-rated sellerTop-rated seller
Buy It Now
eff663 (1,676) 98.1%
Free International Shipping
from China
5/12V USB Relay 1/2/4/8CH Programmable Computer Control Relay For Smart Home New
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Brand New
S$ 7.37 to S$ 14.75
Top-rated sellerTop-rated seller
Buy It Now
x-modules-x (1,610) 98.8%
Free International Shipping
from China
Free returns
5V/12V USB Relay 1/2/4/8 Ch Programmable Computer Control Relay For Smart Home M
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Brand New
S$ 11.06 to S$ 19.67
Top-rated sellerTop-rated seller
Buy It Now
moduleme (87,976) 99.5%
Postage not specified
from China
Free returns
88+ sold
5V 1/2/4 Channel Relay Module HID Drive-free Micro USB 10A/250VAC 10A/30VDC New
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Brand New
S$ 4.97 to S$ 12.00
Top-rated sellerTop-rated seller
Buy It Now
ai_smart (65,908) 99.2%
Free International Shipping
from China
Free returns
1PCS 5V USB Relay 1 Channel Programmable Computer Control For Smart Home
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Brand New
S$ 7.96
Top-rated sellerTop-rated seller
Was: S$ 8.84 10% off
survy2014 (289,800) 99.6%
or Best Offer
Free International Shipping
from China
Free returns
Micro USB Power Delay relay Timer control module Trigger delay switch 5V -30V
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Brand New
S$ 1.46
Top-rated sellerTop-rated seller
or Best Offer
satisfyelectronics (217,506) 99.5%
+S$ 1.46 postage
from China
Free returns
99 sold
HID Drive-free USB 1 Channel 5V Relay Delay Module 10A/250VAC 10A/30VDC
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Brand New
S$ 3.53
Top-rated sellerTop-rated seller
Was: S$ 3.84 8% off
alice1101983 (569,926) 99.5%
or Best Offer
+S$ 5.17 postage
from China
1/2/4/8 Ch 5V 10V USB Relay Programmable Computer Control Relay For Smart Home M
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Brand New
S$ 7.91 to S$ 15.08
Top-rated sellerTop-rated seller
Was: S$ 8.84 7% off
modulefans (115,406) 99.1%
Buy It Now
+S$ 5.17 postage
from China
102+ sold
5V USB Relay 1 Channel Programmable Computer Control For Smart Home
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Brand New
S$ 9.21
Top-rated sellerTop-rated seller
Was: S$ 10.01 8% off
alice1101983 (569,926) 99.5%
or Best Offer
+S$ 5.17 postage
from China
Free returns
5V USB Relay 1 Channel Programmable Computer Control For Smart Home M
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Brand New
S$ 7.65
Top-rated sellerTop-rated seller
Was: S$ 8.22 7% off
modulefans (115,406) 99.1%
or Best Offer
+S$ 5.17 postage
from China
175 sold
1-10PCS DC 12V USB Relay 8 Channel Programmable Computer Control For Smart Home
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Brand New
S$ 16.80 to S$ 140.11
Top-rated sellerTop-rated seller
Buy It Now
bingospace (1,473) 99.2%
+S$ 5.89 postage
from China
5V/10V USB Relay 1/2/4/8-Ch Programmable Computer Control Relay For Smart Home
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Brand New
S$ 8.11 to S$ 16.79
Top-rated sellerTop-rated seller
Was: S$ 12.67 5% off
diybox (77,036) 98.8%
Buy It Now
+S$ 4.12 postage
from China
Free returns
8 Channel 12V DC USB Type-B Relay Board Module Controller for Automation Robotic
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Brand New
S$ 29.96
Top-rated sellerTop-rated seller
or Best Offer
worldchips (190,393) 99.1%
Postage not specified
from China
Free returns
USB-6525 779640-01 solid state relay channel isolation new free ship
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Brand New
S$ 158.73
gotomore (30) 100%
or Best Offer
Free International Shipping
from United States
UD74B08 8 Channel I/O MultiFunction USB Relay COM Serial Port UART Relay Board
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Brand New
S$ 12.48 to S$ 37.46
Top-rated sellerTop-rated seller
Was: S$ 13.27 6% off
uafymu (497) 97.3%
Buy It Now
Free International Shipping
from China
USB TTL232 UART PC MCU COM Relay Module CH340 WIN10 Linux MAC 8ch DC 5V 12V 24V
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Brand New
S$ 2.02 to S$ 25.46
Top-rated sellerTop-rated seller
Was: S$ 2.94 31% off
canton-electronic (25,165) 99.4%
Buy It Now
Postage not specified
from China
5PCS 1-Channel USB Relay Module USB Intelligent Control Switch USB Switch 5V
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Brand New
S$ 25.09
Top-rated sellerTop-rated seller
or Best Offer
2015allinone (6,157) 98.8%
Free International Shipping
from China
Last one
NEW 5V USB Relay 1 Channel Programmable Computer Control For Smart Home M
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Brand New
S$ 10.38
Top-rated sellerTop-rated seller
Was: S$ 11.28 8% off
strongpoints (532) 100%
Buy It Now
Free International Shipping
from China
4CH eWeLink Smart WIFI Switch Universal Wireless Relay Module USB5V/ DC7-48V
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Brand New
S$ 14.20 to S$ 15.95
Top-rated sellerTop-rated seller
Was: S$ 15.44 8% off
alice1101983 (569,926) 99.5%
Buy It Now
+S$ 5.17 postage
from China
Free returns
WiFi/Zigbee Smart 8CH Remote Switch Control Signal Display Delay Relay Module
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Brand New
S$ 6.25 to S$ 18.72
Top-rated sellerTop-rated seller
Was: S$ 14.25 5% off
opulentelectrical0 (225) 97.9%
Buy It Now
+S$ 5.17 postage
from China
Free returns
DC 1/2/4/8 Channel 5V 10V USB Relay Programmable Computer Control Relay
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Brand New
S$ 9.49 to S$ 16.14
Top-rated sellerTop-rated seller
Was: S$ 10.32 8% off
worldchips (190,393) 99.1%
Buy It Now
Postage not specified
from China
Free returns
1-10PCS DC 12V USB Relay 8 Channel Programmable Computer Control For Smart Home
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Brand New
S$ 16.80 to S$ 140.11
Top-rated sellerTop-rated seller
Was: S$ 147.48 5% off
gotw3527 (3,426) 99.2%
Buy It Now
+S$ 2.35 postage
from China
DC 12V 8 Channel USB Type-B Relay Board Module Controller for Automation Robotic
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Brand New
S$ 26.64
Top-rated sellerTop-rated seller
or Best Offer
gotw3527 (3,426) 99.2%
+S$ 2.35 postage
from China
HID Drive-free Micro USB 2 Channel 5V Relay Delay Module 10A/250VAC 10A/30VDC
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Brand New
S$ 5.68
Top-rated sellerTop-rated seller
Was: S$ 6.19 8% off
alice1101983 (569,926) 99.5%
or Best Offer
+S$ 5.17 postage
from China
5V USB Relay 2 Channel Programmable Computer Control For Smart Home Control
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Brand New
S$ 8.03
Top-rated sellerTop-rated seller
Was: S$ 8.83 9% off
satisfyelectronics (217,506) 99.5%
or Best Offer
+S$ 1.46 postage
from China
Free returns
1CH AC/DC 7-32V Smart WiFi Relay Switch Module USB 5V Wireless Remote Control
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Brand New
S$ 12.98
Top-rated sellerTop-rated seller
or Best Offer
opulentelectrical0 (225) 97.9%
+S$ 5.17 postage
from China
Free returns
5V Relay Module Delay Power Off Disconnect Trigger Delay Cycle Timer Switch
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Brand New
S$ 4.92
Top-rated sellerTop-rated seller
Was: S$ 5.18 5% off
gotw3527 (3,426) 99.2%
Buy It Now
+S$ 2.35 postage
from China
HID Drive-free Micro USB 1/2/4 Channel 5V Relay Module 5V 10A/250VAC 10A/30VDC
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Brand New
S$ 5.89 to S$ 10.04
Top-rated sellerTop-rated seller
Buy It Now
x-modules-x (1,610) 98.8%
Free International Shipping
from China
Free returns
(12v)4 Channel Relay Module 10A Multifunctional USB Relay Module For Home Office
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Brand New
S$ 17.27
Top-rated sellerTop-rated seller
Buy It Now
fungee33 (26,612) 98.2%
+S$ 7.37 postage
from China
HID Drive free USB/Micro USB 1/2/4CH 5V Relay Module 10A 250V AC / 10A 30V DC
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Brand New
S$ 5.71 to S$ 12.71
Top-rated sellerTop-rated seller
Buy It Now
memolines (11,110) 98.4%
Postage not specified
from China
Free returns
HID Drive-free Micro USB 1 2 4 Channel 5V Relay Module 5V 10A/250VAC 10A/30VDC
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Brand New
S$ 4.53 to S$ 10.51
Top-rated sellerTop-rated seller
Was: S$ 4.93 8% off
worldchips (190,393) 99.1%
Buy It Now
Postage not specified
from China
Free returns
DC 5V/12V/24V 8CH USB Serial Port Relay Module UART RS232 TTL Switch Board CH340
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Brand New
S$ 1.96 to S$ 23.21
Top-rated sellerTop-rated seller
Buy It Now
alice1101983 (569,926) 99.5%
+S$ 5.17 postage
from China
Free returns
HID Drive-free Micro USB 1/2/4 Channel 5V Relay Module 5V 10A/250VAC 10A/30VDC
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Brand New
S$ 3.59 to S$ 8.06
Top-rated sellerTop-rated seller
Was: S$ 4.96 8% off
alice1101983 (569,926) 99.5%
Buy It Now
+S$ 5.17 postage
from China
12V USB Relay 8 Channel Programmable Computer Control For Smart Home Control
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Brand New
S$ 17.50
Top-rated sellerTop-rated seller
Was: S$ 19.02 8% off
alice1101983 (569,926) 99.5%
or Best Offer
+S$ 5.17 postage
from China
8 Channel USB Relay Board 12VDC USB Relay Board Module Controller 8CH Control
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Brand New
S$ 26.54
Top-rated sellerTop-rated seller
Was: S$ 28.24 6% off
fungee33 (26,612) 98.2%
Buy It Now
+S$ 1.83 postage
from China
HID Drive-free Micro USB 1/2/4 Channel 5V Relay Module 5V 10A/250VAC 10A/30VDC
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Brand New
S$ 5.52 to S$ 12.91
Top-rated sellerTop-rated seller
Buy It Now
moduleme (87,976) 99.5%
Postage not specified
from China
Free returns
12V 4-CH Channel USB Relay Programmable Computer Control For Smart Home
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Brand New
S$ 10.78
Top-rated sellerTop-rated seller
Was: S$ 11.72 8% off
alice1101983 (569,926) 99.5%
or Best Offer
+S$ 5.17 postage
from China
HID Drive-free Micro USB 4 Channel 5V Relay Delay Module 10A/250VAC 10A/30VDC
Opens in a new window or tab
Brand New
S$ 9.18
Top-rated sellerTop-rated seller
Was: S$ 9.98 8% off
alice1101983 (569,926) 99.5%
or Best Offer
+S$ 5.17 postage
from China
DC5V Delay Timing Timer Delay Turn Off Switch Time Countdown Relay Module w/ USB
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Brand New
S$ 7.31 to S$ 7.35
Top-rated sellerTop-rated seller
Buy It Now
hello_alian (29,728) 99.4%
+S$ 2.21 postage
from China
Free returns
DC 5V 12V 1 Channel TYPE-C USB Relay Board RS232(TTL) PC UART Serial Port Switch
Opens in a new window or tab
Brand New
S$ 9.47 to S$ 9.86
Top-rated sellerTop-rated seller
Was: S$ 10.49 6% off
eff663 (1,676) 98.1%
Buy It Now
Free International Shipping
from China
USB 5V DC7-48V Universal 4CH Smart Wireless WiFi Switch Relay Module For Ewelink
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Brand New
S$ 14.01 to S$ 18.22
Top-rated sellerTop-rated seller
Was: S$ 14.75 5% off
diymoremodules (562) 98.7%
Buy It Now
+S$ 4.41 postage
from China
USB 5V DC7-48V 4-Way eWeLink Smart WIFI Switch Universal Wireless Relay Module
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Brand New
S$ 15.42 to S$ 20.13
Top-rated sellerTop-rated seller
Was: S$ 16.23 5% off
diybox (77,036) 98.8%
Buy It Now
+S$ 4.12 postage
from China
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