Hello, A similar question was asked by another German user on the site. His answer was positive, so I guess it should be positive in your case too. In case of a hold, don't hesitate to contact Apple support directly or to mention your exact model in the comments. Sincerely, N. Oliveira

Hallo Gemäss everymac haben sie richtig ausgewählt. https://everymac.com/systems/apple/macbook_pro/specs/macbook-pro-core-2-duo-2.26-aluminum-13-mid-2009-sd-firewire-800-unibody-specs.html RAM Type: PC3-8500 DDR3 Min. RAM Speed: 1066 MHz Details: Supports 1066 MHz PC3-8500 DDR3 SDRAM. Also see: How do you upgrade the RAM in the "Mid-2009" 13-Inch, 15-Inch, and 17-Inch MacBook Pro Core 2 Duo models? How much RAM of what type do they support?

Passt:https://support.apple.com/en-us/HT201165#1

Apple lists the RAM requirements on a support page: https://support.apple.com/de-ch/HT201165 If you filter by the criteria, you can see what is available. Apparently 8gb is the maximum. So you only need 1 x 4gb.

No, this memory is not made for an HP, but for an Apple MAC.

According to Apple's specifications, you need RAM with 1066 MHz (DDR3-1066). -> https://support.apple.com/de-ch/HT201165

According to Apple's specifications, it fits.

It should, yes. Mine was the 15" model, but the memory slots were the same between these two models.

Hoi, gemäss everymac sollte das gehen https://everymac.com/systems/apple/imac/specs/imac-core-i5-2.7-27-inch-aluminum-mid-2011-thunderbolt-specs.html Lg

Yes, that is correct.

Can you please tell us the model number?

check the corsair link yourself and see what they have to say... http://www.corsair.com/de-de/memoryfinder

Yes, it works! I installed it in my old MacBook Pro9 (early 2012) about 2 years ago. Worked wonderfully!

In order for us to answer your query accurately, you would need to provide us with more specific details about your MacBook Pro (what size it is, etc.).

Yes, this memory module conforms exactly to this specification and is compatible with iMacs and MacBooks.