PHS Memory 4 GB RAM Module Compatible with Apple MacBookPro9.1 DDR3 SO DIMM 1600MHz PC3L 12800S

Specification: 4GB RAM | DDR3 | 204 pin DIMM | SO DIMM | 1600MHz PC3L-12800S | 1.35 volt The memory is 100% compatible with the Apple MacBookPro9,1. The memory has been tested by us and released for the device. Free support via our PHS memory hotline. 5 year warranty: If the memory module is defective or fails with proper use within 5 years of purchase date, you will receive an adequate RAM module free of charge after returning it to us. If a matching memory module is no longer available, we will refund the purchase price. The return address for warranty claims can be found above under the seller link "PHS-electronic GmbH". This warranty does not limit your statutory warranty rights. The memory of the Apple MacBook Pro 9.1 device can be adjusted to max. 16 GB.