Monoprice 12 Outlet Slim Surge Protector 10ft Cord, 4230 Joules, Clamping Voltage 330V
Product # 15870
UPC # 889028039793
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$39.99
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Questions and Answers
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Browse 19 questions
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and 35 answers
What is special about the outer four outlets in the corners? They are outlined in green ink and have an icon I am not familiar with.
Kent M
on Aug 5, 2020
BEST ANSWER: These four corner outlets are spatially separated from the other outlets to provide clearance for box-type power adapters. There is no difference in surge suppression.
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- Inaccurate
- Brian P on Aug 5, 2020
- Purchased on Dec 3, 2019
BEST ANSWER: These four corner outlets are spatially separated from the other outlets to provide clearance for box-type power adapters. There is no difference in surge suppression.
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- Brian P on Aug 5, 2020
- Purchased on Dec 3, 2019
I wouldn't say they are special but this Power Surge Strip is a better power strip than many out there with a higher Joules rating then most which is important for protecting your sensitive equipment. Highly recommend it for any expensive computer, audio TV gear. As for the 4 corners of the outlet they were basically designed to handle those bulky AC transformer plugs which takes up a lot of space possibly blocking some of the ac outlet plugs on a surge unit. They are all protected.
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- Thomas V M on Aug 5, 2020
- Purchased on Dec 4, 2019
I believe those are for blucky plug ends - things like vacuums/microwaves and such aren't very wide and can be set side by side without blocking any of the other sockets you may want to use. Devices that have bulky plug ins like laptops can be set in the more isolated plugs so they dont get in the way.
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- Crystal B on Aug 5, 2020
- Purchased on Oct 19, 2019
This is designed for the larger, wider plugs that sometimes take up more than 1 outlet in the smaller surge protectors.
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- Inaccurate
- Steven Vazquez V on Aug 5, 2020
- Purchased on Jul 17, 2017
These are normal power sockets, just spaced out to accommodate "wall wart" style AC adapter plugs.
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- Inaccurate
- Sean T on Aug 16, 2020
- Purchased on Aug 24, 2019
They are made for transformers that take up more space.
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- John L on Aug 5, 2020
- Purchased on Aug 28, 2019
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Does this have any screws on the bottom that allow for wall or under desk mounting?
Alison C
on Jan 16, 2017
BEST ANSWER: It does not have screws on the bottom, however, it does have 4 holes in the corners that, say, the head of a screw would fit into. You could certainly hang it from those holes to mount on a wall. Upside should work as well, the holes get narrower so it can lock into place.
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- John L on Jan 16, 2017
- Purchased on Sep 18, 2016
BEST ANSWER: It does not have screws on the bottom, however, it does have 4 holes in the corners that, say, the head of a screw would fit into. You could certainly hang it from those holes to mount on a wall. Upside should work as well, the holes get narrower so it can lock into place.
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- Inaccurate
- John L on Jan 16, 2017
- Purchased on Sep 18, 2016
It doesn't have screws at the bottom, but it does have screw mounts.
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- Jess J on Jan 17, 2017
- Purchased on Oct 26, 2016
No, but has slots on the bottom for wall mounted screws.
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- Inaccurate
- Linda H on Jan 16, 2017
- Purchased on Oct 1, 2016
It has a screw mount hole in each corner (4 total)
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- Jason T on Jan 16, 2017
- Purchased on Sep 14, 2016
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Is the plug angled?
Dennis N
on Feb 14, 2019
BEST ANSWER: No it is a straight plug. Refer to image 3
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- Inaccurate
- Mark P on Mar 6, 2019
- Purchased on Feb 22, 2018
BEST ANSWER: No it is a straight plug. Refer to image 3
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- Mark P on Mar 6, 2019
- Purchased on Feb 22, 2018
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Is it UL listed?
A shopper
on Jan 22, 2017
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BEST ANSWER: Yes. It's UL listed. Stickered. 12-socket power tap:
Embossed on plastic: 120V AC, 15A, 60Hz, 1800W
Voltage protection rating: L-N 330V, L-G 400V, N-G 400V
Indoor use only, do not use with aquariums, do not connect to another relocatable power tap
Embossed on plastic: 120V AC, 15A, 60Hz, 1800W
Voltage protection rating: L-N 330V, L-G 400V, N-G 400V
Indoor use only, do not use with aquariums, do not connect to another relocatable power tap
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- Inaccurate
- Kinsey L on Jan 23, 2017
BEST ANSWER: Yes. It's UL listed. Stickered. 12-socket power tap:
Embossed on plastic: 120V AC, 15A, 60Hz, 1800W
Voltage protection rating: L-N 330V, L-G 400V, N-G 400V
Indoor use only, do not use with aquariums, do not connect to another relocatable power tap
Embossed on plastic: 120V AC, 15A, 60Hz, 1800W
Voltage protection rating: L-N 330V, L-G 400V, N-G 400V
Indoor use only, do not use with aquariums, do not connect to another relocatable power tap
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- Inaccurate
- Kinsey L on Jan 23, 2017
There is a sticker on the bottom that says "UL listed". The plug also has a molded-in UL marker on it.
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- William E on Jan 22, 2017
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what color should the protected light be?
A shopper
on Sep 3, 2017
BEST ANSWER: Green if anything else you have a issue
- Reply
- Inaccurate
- Thomas V M on Aug 5, 2020
- Purchased on Dec 4, 2019
BEST ANSWER: Green if anything else you have a issue
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- Thomas V M on Aug 5, 2020
- Purchased on Dec 4, 2019
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Does this product good against line noise?
And how higth is the db?
And how higth is the db?
New User U
on Jan 20, 2017
BEST ANSWER: Hi, this product provides 75dB EMI and RFI filtration so it should help with line noise. Thanks.
- Reply
- Inaccurate
- Irv S Staff on May 2, 2018
BEST ANSWER: Hi, this product provides 75dB EMI and RFI filtration so it should help with line noise. Thanks.
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- Inaccurate
- Irv S Staff on May 2, 2018
I have been using this for approximately 8 weeks and I have not noticed any problems with line noise. I can't answer your question about db.
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- Inaccurate
- Richard K on Jan 21, 2017
- Purchased on Nov 7, 2016
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Does this have EMI/RFI Filtration?
Abraham S
on Apr 9, 2017
BEST ANSWER: Yes, this product provides 75dB EMI and RFI filtration. Hope this helps, thanks.
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- Inaccurate
- Irv S Staff on May 2, 2018
BEST ANSWER: Yes, this product provides 75dB EMI and RFI filtration. Hope this helps, thanks.
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- Inaccurate
- Irv S Staff on May 2, 2018
Yes which is important to have filtering out most stray noise from your ac power from your utility company.
- Reply(1)
- Inaccurate
- Thomas V M on Aug 5, 2020
- Purchased on Dec 4, 2019
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Does this power strip have the holes to mount on the wall on the back?
Jose M
on Apr 13, 2017
BEST ANSWER: Yes it does! That's how I have it installed.
- Reply
- Inaccurate
- Jess J on Apr 13, 2017
- Purchased on Oct 26, 2016
BEST ANSWER: Yes it does! That's how I have it installed.
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- Jess J on Apr 13, 2017
- Purchased on Oct 26, 2016
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Interested in buying some of these however I have several suggestions or concerns? One is there a power switch on these as I don't see one? Second, since the indicator lights on the strip are real bright can you not just install a rheostat (dimmer) in line with the voltage feeding the lights to dim them as desired? This which would address these real bright issues (not the best to use in a audio visual or bedroom) or sticking them in a box.
A shopper
on Mar 5, 2019
BEST ANSWER: Hi, there is a switch near where the power cord connects to this surge protector. The switch is also used to reset the product if the built-in circuit breaker kicks in from overload (if there is too much current draw). About the LED light, we do not recommend modifications to the product since it could affect product safety or performance. Masking the light with electrical tape might be an easier solution if it is bothersome for your specific use, however this may negate the usefulness of having the visible indicator. Thanks for your interest in the product.
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- Inaccurate
- Irv S Staff on Mar 8, 2019
BEST ANSWER: Hi, there is a switch near where the power cord connects to this surge protector. The switch is also used to reset the product if the built-in circuit breaker kicks in from overload (if there is too much current draw). About the LED light, we do not recommend modifications to the product since it could affect product safety or performance. Masking the light with electrical tape might be an easier solution if it is bothersome for your specific use, however this may negate the usefulness of having the visible indicator. Thanks for your interest in the product.
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- Inaccurate
- Irv S Staff on Mar 8, 2019
You cannot use a dimmer as that would drop the voltage to every device connected to the strip. Simply put, your devices likely won’t turn on unless they’re incandescent lights. Aka, DON’T put a dimmer in line.
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- Inaccurate
- Christopher B on Dec 10, 2020
- Purchased on Dec 8, 2020
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Is this power surge protector UL-listed?
A shopper
on Jul 24, 2019
BEST ANSWER: Hi, yes the product is UL Listed. Thanks for checking.
- Reply
- Inaccurate
- Irv S Staff on Jul 24, 2019
BEST ANSWER: Hi, yes the product is UL Listed. Thanks for checking.
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- Irv S Staff on Jul 24, 2019
Unfortunately I dont know but it works great!
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- Raquel N on Jul 24, 2019
- Purchased on Oct 11, 2018
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Does this shut off power to the connected components after a surge or when protection fails?
Adam S
on Feb 2, 2017
BEST ANSWER: Yes, this product does have auto-shutoff so current will not flow to plugged in devices once surge protection is used up. Thanks for checking.
- Reply
- Inaccurate
- Irv S Staff on Jul 24, 2019
BEST ANSWER: Yes, this product does have auto-shutoff so current will not flow to plugged in devices once surge protection is used up. Thanks for checking.
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- Inaccurate
- Irv S Staff on Jul 24, 2019
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For RFI/EMI is a higher DB or lower DB better?
Anwar M
on Feb 7, 2020
BEST ANSWER: Higher - indicates more attenuation of RFI/EMI.
- Reply
- Inaccurate
- Richard M on Feb 7, 2020
- Purchased on Mar 3, 2019
BEST ANSWER: Higher - indicates more attenuation of RFI/EMI.
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- Richard M on Feb 7, 2020
- Purchased on Mar 3, 2019
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Is this UL 1449 listed?
A shopper
on Feb 14, 2025
BEST ANSWER: Hi, Yes, the UL and cUL labeling is on the product as well as the file number: E115193. I hope this helps.
- Reply
- Inaccurate
- Jhomar R Staff on Feb 14, 2025
BEST ANSWER: Hi, Yes, the UL and cUL labeling is on the product as well as the file number: E115193. I hope this helps.
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- Jhomar R Staff on Feb 14, 2025
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Is this item UL 1449 Listed? Note this, is NOT the same a basic UL listing.
A shopper
on Dec 10, 2020
When the MOVs fail, does the strip continue to work without the indicator LED? Or does it fail completely? What is the amp (not joule) rating of the individual MOVs?
Christopher B
on Dec 17, 2020
Does flickering of the green "protected" light mean it's doing something? Is it normal for the protected light to flicker? I presume if protection has failed, the light will either change color or turn off?
Evan
on Nov 3, 2021
Has anyone tested this to see if the joule rating is accurate? I understand the surge protection industry is rife with false claims -- even with "reputable" brands. And, a higher price isn't telling.
Philip C
on Jun 2, 2023
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Is the Clamping Voltage really 330v? Can you post a picture of the bottom of the device with specs? thank you
New User U
on Dec 12, 2023
Has anyone experienced an electrical surge while using this product? If so what were the results?
New User U
on Nov 20, 2024
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Rated 5 out of 5
Slim Surge Protector
I like this surge protector because it gives you to option for four large plugs to fit in the corners, with a normal plug configuration in the middle. Also, this surge protector is back lit with a green lite that works will with my equipment that is plugged into it.
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Rated 5 out of 5
Protect your expensive guitar equipment.
I'm using it to protect my music equipment ( guitar pedals power supplies, amps,ect). Recommended...
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Rated 5 out of 5
Monoprice 12 Outlet Slim Surge Protector 10ft Cord
I purchased 2 of them. The surge protector has space for block charges. It is well desinged
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Rated 5 out of 5
Great surge protector. Compact size with lots of room for plug in dc chargers.
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Rated 5 out of 5
Solid Multiple Outlet Power Strip
Surge protector works perfectly for my application of devices in my home entertainment center as well as my home office setup with my desktop computer, router, NAS device, multiple mini-desktops. Highly recommend.
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Rated 2 out of 5
Quality Control and BRIGHT LED Deisgn Flaw
This item was delivered with outlet covers installed backwards, meaning that 4 of the outlets would not accept a plug without manually removing and re-seating them the right way. Also, the green LED on this is insanely bright. This product isn't marketed as a nightlight but it certainly could be. The poorly install outlet guards is a quality control issue, but the bright LED that cannot be modulated is a huge design flaw.
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Rated 5 out of 5
Great surge protector!
I have plugged it in, and am using it to power several components in my live performing rig - so far, so good!
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Response from Monoprice
Thank you for taking the time to review your product. We hope it continues to meet your expectations. Thank you for shopping with us!
July 5, 2023
Eli S
Rated 5 out of 5
Value proposition
Very light weight and does it's job well. Lots of sockets for all your gear.
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Rated 5 out of 5
Highest joule rating I could find on Monoprice. Hopefully won't ever need to test the effectiveness.
Nice surge suppressor.
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Rated 5 out of 5
Good product with long cord
I have only been utilizing one for a short time, but have not had any issues with it. Works as expected. I do like the long cord, allows for much more flexibility in where i can place it in relation to the outlet.
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