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Which power cord to buy for mac studio

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Rockman413

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Original poster
Dec 2, 2014
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1
Hi there,

I'm traveling with my mac studio without the power cord, I'm now in south korea.

I've seen different power cord with the same looking , when I searched c5 cord, I see 220V 2.5A, or 120V 10A, and 220*2.5A doesn't match 120v 10A at all.Wondering what's the amp for Mac Studio and what cable should I buy?



I don't think Apple Store sells this
 
R

Rockman413

macrumors member
Original poster
Dec 2, 2014
48
1
after some research, I realized there's only 2 kind, international for 250V 2.5 A, and north america for 120v 10A.

So what determines the amp? my mac studio will know how many Amp to draw and will draw the needed amp and change the needed amp?
 
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Rockman413

macrumors member
Original poster
Dec 2, 2014
48
1
so Mac will know how much amp it need, and continue to change to whatever amp it need and draws the needed amp?
 
Arctic Moose

Arctic Moose

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Rockman413 said:
after some research, I realized there's only 2 kind, international for 250V 2.5 A, and north america for 120v 10A.
Click to expand...

In the US the standard has been decided nationally at 120V, whereas civilized countries have chosen 220-240V.

As far as modern Macs are concerned this means very little in practice as the power supply has been designed to handle input in the range 100–240V, 50Hz to 60Hz, single phase.

Rockman413 said:
So what determines the amp? my mac studio will know how many Amp to draw and will draw the needed amp and change the needed amp?
Click to expand...

The amps will be determined by the power draw of the Mac and the voltage, the relationship is P = U*I, power (watts), voltage (volts) and current (amps).

The maximum continuous power draw of the Mac Studio is 370W. This means that if you are operating at 100V the current will be 3.7A, but if you are operating at 240V the current will only be 1.6A.

Basically, get a CE-marked cable that has the connector you need at each end and you will be fine, any cable rated for at least 2.5A will be more than sufficient.
 
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Rockman413

macrumors member
Original poster
Dec 2, 2014
48
1
mystery hill said:
Mac Studio M1 Ultra has a maximum power consumption of 215W.

Mac Studio power consumption and thermal output (BTU) information - Apple Support

Learn about the power consumption and thermal output of Mac Studio computers.
support.apple.com support.apple.com

At 220V that’s around 1 amp. It will only draw as much as it needs.
Click to expand...
Thanks. that's just 1 amp, I don't understand, my ssd would draw maybe near 1 amp and I connect 3 ssd and many other usb devices and even an iphone to it (charging), with all these and Mac Studio itself the max is just around 1 amp?
 
Arctic Moose

Arctic Moose

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Rockman413 said:
even an iphone to it (charging)
Click to expand...

An iPhone fast-charges at about 20W at most, which with a voltage of 240V means only 0.08A.

For reference, I am currently running two laptops connected to two Studio Displays, a Thunderbolt hub, an external hard drive, a sound system playing music, charging a phone and an iPad, using some smart lights and a plant light which together draws 1.215 amps at 222.8 volts.

Rockman413 said:
my ssd would draw maybe near 1 amp
Click to expand...

Any SSD drawing near 1A is short-circuiting. An idling SSD draws about 0.05W, and when active maybe 3W. At 240V this translates to 0.0002A and 0.0125A, respectively.
 
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East India Company

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Jan 3, 2023
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Rockman413 said:
Thanks. that's just 1 amp, I don't understand, my ssd would draw maybe near 1 amp and I connect 3 ssd and many other usb devices and even an iphone to it (charging), with all these and Mac Studio itself the max is just around 1 amp?
Click to expand...
What you have seen where it says that your SSD or iPhone draws 1 A is most likely with a 5 V supply. The other answers say it all. You are fine with e CE marked cable.
 
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headlessmike

headlessmike

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profcutter said:
Hey hey now, Japan is pretty civilized, as is Mexico and Canada and much of Central America. Don’t let the voltage mar the good name of countries that adopted our power standards.
Click to expand...
Japan is another can of worms. While they use 100V throughout the country (not 120V), half of the country operates at 50Hz and the other half at 60Hz. That’s probably part of the reason why electronics initially came with compatibility with both.
 
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Admiral

Admiral

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Mar 14, 2015
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Rockman413 said:
Hi there,

I'm traveling with my mac studio without the power cord, I'm now in south korea.

I've seen different power cord with the same looking , when I searched c5 cord, I see 220V 2.5A, or 120V 10A, and 220*2.5A doesn't match 120v 10A at all.Wondering what's the amp for Mac Studio and what cable should I buy?



I don't think Apple Store sells this
Click to expand...

Apple Store can hook you up with a power cable. It will cost about $50 for the Apple part. Fundamentally, though, it's a standard part which you can find at virtually any shop that stocks electrical cables. It's called a "cloverleaf" cable. Sometimes "Mickey Mouse". It's a grounded, high-amperage electrical cable.

Since a lot of cables are made in Korea I'm sure you can find one. Give me a private message.
 
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cyanite

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Sep 28, 2015
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Rockman413 said:
Defeinitely can not use 120V cable, as the power here is 220V+
Click to expand...
While I also wouldn’t do that, it will almost certainly work. The current we are taking about here are far lower that what these cables will typically handle. The current will be even lower with higher voltage.
 
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profcutter

profcutter

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cyanite said:
While I also wouldn’t do that, it will almost certainly work. The current we are taking about here are far lower that what these cables will typically handle. The current will be even lower with higher voltage.
Click to expand...
Yeah, if they said they had the US cable with them, I’d suggest getting one of those plug adaptors, after verifying that the power supply is switchable on the studio. But it seems like they have no cable at all, so they should just grab a generic cable locally.
 
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Unami

Unami

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Jul 27, 2010
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Rockman413 said:
Defeinitely can not use 120V cable, as the power here is 220V+
Click to expand...
Ther's no such thing as a "220V" or "120V" cable. The only difference is the plug. Some of them will fit into a 120V outlet, some of them in a 230V (afaik, nowadays it's 230V instead if 220). But you could cut the plugs and mount it to the other cable and it would still work.

The cable's diameter must be thick enough not to burn through when there's too much current (Amperes).

Either way P=U*I. The Mac Studio's Pmax = 375W, so for 220V (U) the cable has to be able to handle 1,7A (I), for 120V it's 3,1 A. Considering that a lightning cable on the 20W iphone charger handles 2,2 A without even getting hot, a regular power cable won't have any problems with a mac studio. Same goes for a travel adaptor for $6.
 
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Bug-Creator

Bug-Creator

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It's simple, buy a cable that has the "Mickey_Mouse" plug on 1 end and whatever fits a Korean outlet at the other.

The Mac's PSU is rated for 120-240V and even at full load you won't see more then 1A.

Your SSD may draw 1A at 5 or 12V but on the outlet side (at 220V) thats like 0.0xA so no issue either.
 
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transmaster

transmaster

Contributor
Feb 1, 2010
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Cheyenne, Wyoming
Here is a dead handy App for your iPhone/iPadMac

apps.apple.com

‎Plugs of the World

‎Do you know which AC power plug and wall socket are used on your destination when traveling? The official sources on the web are not always up-to-date or reflecting on what's used by common people in some countries. With almost 160 000 downloads Plugs of the World has received a lot of...
apps.apple.com
 
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transmaster

transmaster

Contributor
Feb 1, 2010
1,747
856
Cheyenne, Wyoming
On a related subject. I am not very happy the IEC-320-C5 (Mickey Mouse Ears) power cable that came with my Mac Studio. I usually replace My power cords with hospital grade replacements. Looking at Mouser the have one that is 6 feet long. Here is its data sheet. It is $6.75 each. I have been a customer of Mousers for about 25 years they are very good, no counterfeit junk. You can order cables for any plug standard in the world from Mouser if you don't want to carry adapter plugs.


 
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