rMBP owners SDHC Bus Speed?

[daleski75]

Can a kind Retina Macbook Pro owner confirm if the SDHC Reader uses the USB bus or the PCI-E Bus?

http://support.apple.com/kb/HT3553?viewlocale=en_US&locale=en_US#4

 

[JrJ 15]

The SD card reader on mine does not show up under any usb hub, I would assume that it is not usb.

 

[daleski75]

The SD card reader on mine does not show up under any usb hub, I would assume that it is not usb.

Cheers for that so it looks like the card reader is attached to the pci-e bus which means it supports much faster speeds than the 60mb/sec pre 2012 models are limited too.

 

[luigi.lauro]

An italian test confirms the much faster SD reader in rMBP (and hopefully in cMBP as well):

http://www.saggiamente.com/2012/06/...k-pro-2012-retina-incredibilmente-piu-veloce/

Read: 83.6 MB/s vs 19.9 MB/s (rMBP vs iMac)
Write: 60.1 MB/s vs 13.6 MB/s (rMBP vs iMac)

 

[BigZ9]

Apple switched from using USB to PCI-E for the SD card reader a while back, I don't know how far back, maybe a few revisions. All 2012 models should be on the PCI-E bus though

 

[Ap0ks]

Kinda related to this topic, would anyone be able to recommend a decent microSDXC card? Looking for a 64GB+ to use in an SD adapter initially for storing the odd music/video file and documents.

 

[luigi.lauro]

Kinda related to this topic, would anyone be able to recommend a decent microSDXC card? Looking for a 64GB+ to use in an SD adapter initially for storing the odd music/video file and documents.

Best one on the market right now is the SanDisk 64GB Mobile Ultra MicroSDXC Class 10 UHS-1.

It's also the only class 10 64gb microSDXC, as far as I know.

http://www.amazon.com/SanDisk-Mobil...r=8-5&keywords=sandisk+64+gb+micro+sdxc+ultra

Beware that SanDisk released a while ago a almost identical class 6 microSDXC, be sure to get the latest Class 10 UHS-1, which is way faster.

 

[fskywalker]

Can the micro SD card be used on the rMBP without the SD adapter to avoid it protuding from the body? If so, can someone share a picture on how it would look?

Thanks,

 

[ColdCase]

You need some kind of adapter. Minidrive is available on amazon. There are others. Do a search you will see discussions. 64GB in a minidrive sanded down here: