Hi, I just bought this and installed it to my Mac, but the speed, for both read and write, is about 230 MB/s. I thought it will be in the 400s range?
1135106
I would encourage you to contact the Company. I have found Crucial to be extremely available and responsive. I get a real person on the phone with a minimum number of automated choices and they work directly for the Company, in Idaho at their main headquarters.
1135107
Is your mac's Sata 6Gb/s compatible? Because, if it is older, it may be only 3Gb/s, and that would be why it is slower.
1135108
I get 427.374 MB/sec by using the following command in terminal:time dd if=/dev/zero bs=1024k of=tstfile count=1024 2>&1 | awk '/sec/ {print $1 / $5 / 1048576, "MB/sec" }'
1226091
Did I read right? On this LaCie the USB 2.0 transfers at 480 mbs and the 400 firewire at 400mbs? This is in the spec section describing the product. I have a new MacBook Pro and had to use the USB cable since the 400 firewire LaCie cable would not fit the Mac's 800 port. I found that it transferred very fast. However I bought this for the firewire capability and expect to use it. When will LaCie make the 800 firewire, I wonder?
933841
I use Extreme 60MB/s UDMA 16 GB SanDisk and works perfect ,I have not use Type II CF. Also use my Mac and recognized it .
384452
I believe the wrote speed is up to 90MB/s* and writes up to 60MB/s. Hope this helps.
1135080
This device is a writer, not a reader. If you are intending to read (as in, watch) BluRays, this isn't the device for you. If, however, what you intend to do is backup your data files to BluRay format, you want this. I cannot provide the actual write speed data for this device, but on USB 3, my experience is that it is fairly fast, determined of course by the amount and type of data you are writing.
260555
This thing is very fast never had a read issue. I think it would be more dependent on the speed class of the SD card. The USB speed on this thing blows my mind!
893137
Hey Gov, based on my testing of the card, read and write speeds of 44.4MB/s and 19.1MB/s respectively. Hope that helps.
950341
The write speed stays above 45MB/s but that will be more than ample for still photography especially. It's also plenty for HD video or still bursts coming from a DSLR if you are converting this to a full-size SD card.
1795673
My answer was for Mac Book Pro. There are several models of "MACs" so you need to do homework for your model. You may be able to do better than 4GB and at higher speed since your mode is newer than mine. Some memory sellers have downloadable memory checkers so you are shown the right memory for your machine. Good luck.
1066648
Hi Julio, This memory is 1333MHz speed and your mac takes 1066MHz from factory. This memory will actually down clock to 1066MHz and work perfectly fine in your mac.The previous answer is correct as your mac cannot take the full advantage of a 16GB Kit and will only read up to 8GB.Best regards,GonzaloCustomer ServiceQSCComputer
782787
Something is not right there. On a wired 1Gbps connection with a single copy I would expect at least 400Mbps, with speeds over 700Mbps on faster switches (efficient internal packet forwarding). That is from testing when I first received the unit (tested with 4 x 5200 RPM Toshiba 160GB in RAID 5, prior to 4 x 7200 RPM Seagate 750GB in SHR I have had in it since then - but I haven't tried that on a fast switch, my home switch seems to max about 500Mbps).For comparison, I've seen speeds close to single line speed (~900Mbps) on a DS713+/DX513 combo.If you are on WiFi, I would run hardwired tests for comparison. Then start troubleshooting your WiFi. Something is not right there. On a wired 1Gbps connection with a single copy I would expect at least 400Mbps, with speeds over 700Mbps on faster switches (efficient internal packet forwarding). That is from testing when I first received the unit (tested with 4 x 5200 RPM Toshiba 160GB in RAID 5, prior to 4 x 7200 RPM Seagate 750GB in SHR I have had in it since then - but I haven't tried that on a fast switch, my home switch seems to max about 500Mbps).For comparison, I've seen speeds close to single line speed (~900Mbps) on a DS713+/DX513 combo.If you are on WiFi, I... » Read More Something is not right there. On a wired 1Gbps connection with a single copy I would expect at least 400Mbps, with speeds over 700Mbps on faster switches (efficient internal packet forwarding). That is from testing when I first received the unit (tested with 4 x 5200 RPM Toshiba 160GB in RAID 5, prior to 4 x 7200 RPM Seagate 750GB in SHR I have had in it since then - but I haven't tried that on a fast switch, my home switch seems to max about 500Mbps).For comparison, I've seen speeds close to single line speed (~900Mbps) on a DS713+/DX513 combo.If you are on WiFi, I would run hardwired tests for comparison. Then start troubleshooting your WiFi. « Show Less
411910
I use a 16 GB tab on a mac laptop, USB2, OSX 109.3. It's fast enough for me. I mostly store very small documents on it. i tried a 947 MB file; took 2 minutes. a file speed tester a tried yielded speeds all over the place: write 5.5 to 9.6 MB; read 16.1 to 34.9 MB.if you want large files to transfer fast, try a Patriot Magnum. Mine is USB2; it's honkin' big, but i copied the same file in 30 seconds.
1326414
Just to throw in my 2 cents here, the Disk Utility reformat mentioned above in Andrew's post is spot-on. The drive so far as been great to use. However, I'm running Mac 10.5.6 and it was immediately recognized when I first plugged it in: it mounted and Time Machine asked if I wanted to use it for backups... I did the reformatting anyway as the apps on board are no use to a Mac owner. BTW, the $99 price was unbelievable! Fingers crossed on reliability, Yikesboy
1626710
The drive itself is only 5,400 RPM. However, if your only option is Thunderbolt or USB 2.0 (2011 iMac for instance) then this drive will still offer higher performance over a 7,200 RPM external USB 2.0 hard drive. USB 2.0 is limited to about 60MB/s (480Mbit/s), and this drive achieves around 105MB/s - 109MB/s according to http://reviews.cnet.com/external-hard-drives/buffalo-ministation-thunderbolt-1tb/4505-3190_7-35338125.html. Having said that, I have two of these. I have one on a 2013 iMac (i7 & 16GB Ram) and another on a 2011 iMac (i7 & 16GB Ram). I use them as external drives for my Windows 8 virtual machines. They are very speedy, and I haven't had any performance issues as of yet. You're correct however, you will never see 10,000GBit/s as they imply.
1111631
Hi, I was at the Apple Store on Tuesday and the Genius told me that I probably would not get good results with 10.5 Leopard on my iMac 800 G4. It is running at 800 MHz. We are using Tiger and have had no problems other than when we upgraded the RAM. It wouldn't take a gig- so we are at 768. It is 10.4.10 now.
738419
I had to use a flash hack to roll back to earlier macbook pro 15 firmware that set it for 1.5GBs, it seems to work ok. I did read where some folks on forum said it was the SATA cable on the Macbook Pro that was the problem and they bought a newer cable and swapped it to fix it
249525
i din not really know the write speed but it is faster than circular seek swite disk. i am happy with it.