Can i upgrade my Hardisk from 500 gb to 1 TB

Writing an effective Apple Support Communities question

OP did post a system information screen, but it contained the system serial number.

Please post your Model Identifier or Model Year, without serial number. As HD upgrade possibility is dependant on model.

You could more closely identify the computer model, if MacBook/Pro with info here:

• How to identify MacBook Pro models - Apple Support

If the computer is correctly identified by the model A1278, and has a 13-inch display

(non-retina) and is equipped with a built-in optical drive, then it's a Mid 2012 model.

Also, some times the model number is re-used in different years, making identification

sometimes imprecise. In association with model number, the EMC would be helpful.

The answer would probably be 'yes' however the correct part depends in proper identification.

•Mac Serial Number Info - Lookup your Apple Serial Number:

https://www.powerbookmedic.com/identify-mac-serial.php

You could enter the product serial number in this lookup page to verify the model

as indicated, then consider that as a cross-reference to information you post here.

An example of a reputable source for replacement hard drives, SSDs, for Mac:

http://eshop.macsales.com/shop/hard-drives/2.5-Notebook/

In any event...

Good luck & happy computing! 🙂

Thank you for confirming the model number, build series, and year of manufacture.

This information helped me to verify the series correctly, and although the packaging

states: July 2015, that is the actual date of manufacture so the product is current in

production. However the build series started in 2012 and remains popular, so it does

continue to be made. A build series date shows beginning of that hardware version...

This information was captured from the powerbookmedic.com serial number lookup page and they show

the confirmation of the date on your product box is correct based on that number, is: 2015, July 31. H1D.

The same page the above screen capture was from has a second tab or layer of information about the

hard drive and other parts. Mostly replacement parts and their US$ price from that one company if they

were bought from them. This helps to know they do exist and your model can see some upgrade and

replacement of parts (part numbers, etc) so those may be obtained using those numbers, near almost

anywhere should the need arise. Later after a few years use, you may find a need for this information.

As time goes forward, the actual version of this series ships with the most recent OS X (and as that does

change, so would the system specs) and as needed the product may see changes in some aspects of

the internal hardware; however should significant change occur, the model or EMC, etc may also change.

Given sufficient detail changes, the pattern has been the reference build series number changes, too.

(As seen by the MacBook/Pro Retina models that supersede the older LED backlight mid-2012 MB/Pro.)

You can see how this relates, by studying the various other model build specifications at Everymac.com

or by downloading MacTracker app from http://mactracker.ca for verification of model build specifications.

Introduced June 2012

Discontinued --

Model Identifier MacBookPro9,2

Model Number A1278

EMC 2554

Order Number MD101LL/A (2.5 GHz), MD102LL/A (2.9 GHz)

Maximum Memory 16 GB (Actual) 8 GB (Apple)

Memory Slots 2 - 204-pin PC3-12800 (1600 MHz) DDR3 SO-DIMM

Minimum Speed --

Interleaving Support Yes

Upgrade Instructions http://support.apple.com/kb/HT1270

(note old article shows only Apple upgrade spec)

Hopefully this helps. Your MacBook Pro 'mid-2012' build series model, made this past July 2015 can use

a 1-TB hard disk drive upgrade. The physical shape (thin size) and dimensions, power and data rates,

need to be the same or backward compatible to your model. I'd consider a quality 7200-RPM rotational

hard disk drive to upgrade this specification from the original 5400-RPM rotational spindle speed HDD the

computer shipped with. The speed of accessing and file swapping to and from the hard disk drive is largely

a bottle-neck or slow-point in data transfer in the original hard disk drive rotational speed. A much faster

upgrade may be to have a 'solid-state' drive installed instead. There is a process to do this successfully &

to look into the OWC macsales.com site page, they offer free to use (view online) video instructions on how

to set up the replacement HDD or the SSD models they also sell. No obligation to buy theirs; however the

Mercury series they offer has superior characteristics over other brands. Also note the iFixit.com repair guide

for Mac includes portable models and your build series is listed; with detailed replacement instruction images.

A universal USB wire kit such as an example the macsales company has, may be helpful to prepare a new

replacement storage drive upgrade unit for use with the computer, by accessing the bare hard drive before

installing it; the new one can be correctly formatted and also the present OS X can be cloned over to there

and then later, the internal drive could be put into a quality enclosure for later use or for backup archive so

you could revert to the present system (having a bootable copy) at a later date if needed. Instead of the

suggested wire adapter kit (shown here) http://eshop.macsales.com/item/NewerTech/U3NVSPATA/ a special

USB wire kit (includes power adapter to run the bare drive) - you may consider a quality drive enclosure that

has a power supply, however that would need to be installed into the enclosure before using the new drive

and then later, the same drive would need to be swapped into the MacBook Pro after format & OS X install.

Additional handling would be needed to later install the original MacBook/Pro HDD into external enclosure.

for use as storage or secondary boot system drive, etc. (A self-powered enclosure is best in this instance.)

Hopefully you will be able to upgrade the hard drive and have the computer more closely match your needs.

The computer can also see RAM memory chip upgrade, to as much as 16 GB in two 8-GB chips. Be sure

to match the correct exact spec RAM, from reputable maker or supplier (tested in your model Mac) who also

guarantees the memory chips. OWC company does this, however other quality brands may suffice, such as

crucial.com offers via their site according to the model of computer involved. A shop near you may offer the

quality brands and offer guarantee or replacement for lengthy duration. Or you can order and install easily.

Good luck & happy computing! 🙂