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Square D QOB2100-1021
Square D QOB2100-1021
Square D QOB2100-1021
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Square D QOB2100-1021

Marsoni M251S
Sale price$180.00
Pay 4 payments of $45.00 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Square D QOB2100-1021QOB Bolt On Three pole thermal magnetic circuit breakers provide overcurrent protection and switching on AC and DC systems. Bolt on QOB circuit breakers are for use in NQOB and NQOD panelboards. QOB circuit breakers have an over center, trip free toggle mechanism with quick make, quick break action and positive handle indication. The tripping mechanisms in three pole circuit breakers operate such that an overcurrent on any pole of the circuit breaker
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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
4.2 ★★★★★
Based on 115 reviews
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Product Reviews
E
Verified Purchase
E's mom’s husband
Lake Worth, US
★★★★★ 4
Works good, happy with purchase
Works good with usb-c expansion card. Data transfer rates are good. Lets me use usb thumb drives and external hard drives that gave usb-a connectors
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
A
Verified Purchase
Amazon Customer
Waukegan, US
★★★★★ 5
inexpensive usb3.1 gen 2 hub with PD
This USB3.1 gen 2 hub is well made, featuring VIA Labs controller (device id 2109:2822) and is made in China. It looks nice and performs according to the specs. I wish usb-c socket supported TB3/Alt DP cable to connect a display to it, but it is apparently made mainly for power delivery. I think the hub is a good value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 21, 2025
D
Verified Purchase
David Row
Lowell, US
★★★★★ 5
Do you need a powered hub instead?
NOT powered. My bad, I didn't look closely enough. I need a powered hub.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 7, 2026
A
Verified Purchase
AMAZON CUSTOMER
Cuba, US
★★★★★ 5
plug and play ...fast ...hi performance... same as higher price
plug and play ...fast ...hi performance... same as higher price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
H
Verified Purchase
H. T.
Omaha, US
★★★★★ 5
premium feel in the hand.
Can't really say whether it's that good or not elecronics wise since I didn't test it but it works like it's supposed to. Meanwhile, the housing oh man. It's premium. It feels like hard aluminum or something, very nice. Edges are rounded too with just the right sharpness like a macbook. Others would've been plastic. This is really nice for the price and if the specs really are 10Gbps, that's really good because most in this price range is 5Gbps.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 2, 2026

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