this is 128Gb ssd
Please purchase with caution, if your computer has previously installed MAC OS 10.13 operating system, you can purchase. You must upgrade your computer to MAC 10.13 system before you have not received the package. Otherwise the hard disk will not be able to use. Does not support refund-only transaction disputes. If you are unable to use it, you can request a refund and we will process it. If you do not plan to return the package for a refund, please do not purchase it.
these laptops can be used