Hi there
There are Two TYPES of 2.5' SATA drives.
If you see cheaper prices for SAME SIZE, then BUYER BEWARE!!Often there is no way to tell the differance physically!
Sata ! = 150MB Only = mostly used in Earlier laptops - generally 4200 and 5400RPMS drives at various sizes. These were mostly used in Early T series laptops - T60s -and generally upgrading these (to SATA II) would see NO MAJOR changes in "read or write' speeds . These drives are generally known as
"150 or 1.5" 2.5' sata drives
Sata II - these generally are newer drives that most Current latpops use. Thise drives were mostly developed for Intel series APPLE Pro laptops and kinda migrated to other latops/PC..... Some T60p series started using these and most T400- 500 etc use these now with '300MB' speeds -generally known as
"3.0" 2.5' sata drives drives.
Hope these help....
Note > the so called "rubber pads" and "metal caddy" are very very impportant items and have a huge and critical purpose in Lenovo laptops. it might seem just a cheap (nasty smelling when new) parts but they are critical and serve two critical purposes:
1) Eleminate/reduce vibrations transmissions - from hard drive to laptop Sys BD & ROLL CAGE Frame ...
2) Reduce heat transfer to laptop frame.....
3) The metal cages that surrounds most SATA DRIVES in lbm/lenovo series laptops are also an "insulating" item that stop HARD METALtp METAL contact between the HD and laptop ROLL CAGE (FRAME). Stops electrical 'shorts' between HD and FRAME
4) Rubber boots help align and give current height for HD to connect to the SATA SLOT when you push the HD @ install
Here is a link ( sold via this forum link above)
http://newmodeus.com/shop/index.php?mai ... &cPath=2_7
As a side note = IBM LAPTOP ROLL CAGE is the same roll cage used in panasonic 'tuff laptops! and yes you can drive over it with a CAR as seen in few utube videos <ps dont go testing your laptops under your car now !!>
These rubber 'boots' are nothing new for those who have had APPLE LAPTOPS, as its been used in most ALL of laptops that APPLE MAKED!!
The SSD if you buy from Lenovo , do come with an 'install kit" that includes these 'spaces needed to corrently align, insulate and 'spacers' that adjust to fit the cavity for CORRECT INSTALL.Thus the SSD dont rattle or sit at an incline in the bay and stress the connectors!!
FYI-some benchmarking rates published here are nearly HALF what I can get on my W700&500 ,,,, but then i know its not APPLE to APPLES comparisions
OSX > sorry due to Legal & Confidentiality issues I cannot comment on this topic