I felt compelled to write a review specifically for how this drive performs as a replacement for the 500GB 5400RPM drive that comes stock in the Playstation 4. I'll explain why this is the best drive for what I feel are the three main points to consider: Storage space, speed, and price.

*Storage space - 500GB will not be enough space for this system in the long-run. The operating system and other mandatory installs take up just under 100GB of space on your drive. Games are now running at full 1080p resolution as well, which makes the game sizes enormous. Most games will take up between 20-50GB. Assuming you are left with about 400GB of usable space after the OS, that will allow approximately 20 games to be installed on your drive if the games are on the SMALL side. The actual amount of games you will be able to fit may be significantly less, as games like Killzone: Shadow Fall are about 40GB. The solution to this issue may be to uninstall games as your drive fills up, but this is inconvenient and you may want to play those games again. As hard drive technology evolves over the coming years, I could see a 2TB hybrid drive being a tempting purchase for myself.

*Speed - There is a LOT of misinformation in the reviews on the performance of this drive. Seagate advertises "SSD-like performance". This is simply not true. Solid state drives are drastically faster than both traditional hard disk drives and hybrid drives like this one. This hybrid drive can get close to solid-state speeds when it comes to certain tasks, thanks to Seagate's adaptive memory technology. Seagate's Adaptive Memory technology essentially allows the drive to "remember" tasks that are frequently performed, store the information for those tasks in the solid-state cache, and give impressive speeds for those tasks. Most often, these speed boosts will be noticeable in booting up your system, shutting down your system, installing software, and launching applications. I also have to say that the speed boost for these is much more apparent on a PC. For the actions I've just mentioned, you will see an improvement in performance if you were to do an A/B test with the stock drive, but it will not be mind-blowing like having a fully solid-state drive installed on a Windows 8 computer. While playing games on the PS4 with this hybrid drive installed, loading times may be decreased slightly, but again this will not be mind-blowing.

*Price - With what I've just explained in the speed portion of my review, you may be asking why I'd even bother recommending this drive as a replacement, let alone the BEST replacement for a PS4. The reason is price. No, the speed boost compared to a traditional HDD will not blow you away when used in a Playstation 4. Even if it isn't huge, the speed boost is definitely there, and the cost of this drive is comparable to traditional non-hybrid drives. A 1TB SSD will cost you around $600 at the moment. This makes this a no-brainer. In my opinion, given the size of "next-gen" game installs, it is completely necessary to upgrade to a 1TB drive (or larger in the future). With all things considered, as of the time this review is written, installing this in a PS4 just makes the most sense.

Excellent SSHD! Had 3 months no problems! Loading speed is faster than regular HDD! Recieved before expected date! Used on PS4!!!

I replaced the broken 500GB hard disc in the Toshiba Satellite A665 and it runs great. I have really enjoyed serious improvement in performance with Seagate's 2TB SSHD in one of my desktop PCs so I decided to go with this 500GB SSHD as opposed to the regular 7,200rpm spinner. I should have done more research before getting this drive. They are unfortunately not the same beasts. Now, the small file performance is spectacular. The drive is only 5,400rpm but the 8GB of flash memory is uses to cache the drive really cranks up the 4k file throughput. Overall small file benchmarks are great. However, if you will be working with large sound and video files then you should look into either a SSD or if that is too expensive then maybe the 7,200rpm HD version because the overall throughput is simply better on average. I'm lucky in this case because I am running Debian 8 on this laptop and not doing anything with huge sound/video files right now.

I'm writing this not only to give positive reviews for these two products, but to consolidate the hours of research and trial/error I did during install:

OEM: HD - Fujitsu 320 GB HDD - mhz2320bh g2 ATA, 5400rpm
RAM - 4.00GB (3.75 useable); 2x 2GB, 800MHZ, 200-PIN, PC2-6400, Sdram (Sodimm); DDR2 800, CL=6
NEW: HD - Seagate 1 TB SSHD, 6Gb/s, 64 MB Cache 2.5”
RAM - Komputerbay 8 GB (2x 4GB) PC2 DDR2-800 SoDIMM Dual Channel

Install of new hardware on HP dv7 1245dx:

I installed the RAM and SSHD at same time.

1. Before opening up computer, I backed up my OEM drive to an external drive. Also, whenever opening up the laptop, be mindful of static electricity. I wear nitrile gloves to avoid any discharge. Doesn’t take much to cause issues.
2. RAM: Laptop recognized RAM automatically after restart and utilized right away. Showed up in System Information screen. Noticeably faster. Awesome. I also noticed that my fan, which usually runs at high speed about half the time, didn’t run high at all during all of this.
3. SSHD: This computer has two hard drive bays. You can install the new drive into either bay. The original bay (on left) will be labeled “0”, and the second one is “1” in the Disk Management program in Windows 7. Since having both hard disks in the laptop, I was able to do all the following from the same laptop. Did some internet searching, but here’s how I installed new SSDH:
a. Start  type, “Create and format”; should get a menu item that reads full, “Create and format hard disk partitions”.
b. This will bring up the Disk Management program from which you can interface with the hard drives on your computer. My new SSHD was labeled default, “Disk 1”, and reading as, “Online”.
c. Right click on Disk 1  New Simple Volume… This will allow you to copy files to that drive.
d. Assign whatever letter and name you want. It will get changed by Windows later to C:. (I named mine “A:”).
e. You should be able to now see the new drive show up in Windows Explorer.
f. Now to install from OEM to new drive to become the primary. (If you simply want your new drive to be the secondary, then copy and paste whatever you want to the new drive – it does not need an OS to do this):
i. I used Macrium Reflect Free. Install this or whatever mirroring software you choose.
ii. My OEM drive has a C: partition and a D: Recovery partition. If you copy both these to the new drive, then the new drive will use only the amount of memory that is required for these drives, and deem the rest of the new drive as “Unallocated”. You can extend the memory range only for the partition that is physically next to this unallocated partition within Disk Management. If you copy both the C: and D: partitions of the OEM drive, then the D: Recovery partition will be the only one you can extend, as it will be physically next to the unallocated partition. So…
iii. Using your mirroring program of choice, copy ONLY the C: partition. This will allow you to extend the memory space of this partition to all but a small amount of the new drive. May take a couple hours. (*Note: One of the options is to create a Dynamic partition. This will allow that partition to communicate with other separate drives. I didn’t find this necessary.)
iv. Go back into Disk Management and make a New Simple Volume of this small space on the new drive. Label as, “Recovery”. (*Note: I was not able to copy the D: Recovery partition from the OEM to the new drive. When I tried through Macrium the last screen prior to initiating this move said it was going to format the A: drive. You may be able to get this work.)
v. Go back to Disk Management (via, “Create and partition” in Start search bar). You should see a clone of your C: partition on your new drive, and a formatted, empty D: Recovery partition.
g. (After some internet searching it was said that I would need to change the boot order within BIOS to read the new drive first during boot. However, I found this not to be necessary.)
h. Shut down laptop and take the OEM drive out of the left bay and put the new drive into that bay. Leave the OEM out for now.
i. Reboot. This may take a minute or so due to system reconfiguring.
j. Check Windows Explorer. The new drive, now in the left bay, should show up as C: and D: Recovery. This is now the new boot disk for the laptop. It may even be a good idea to restart, just to make sure all is in order with the new drive.
k. You can put the OEM drive into the right bay if desired. Windows will automatically label the partitions in the OEM drive. This is a nice alternative to having an external drive. You can use this as a backup or whatever. It’s nice to have immediate access to an old version of your files in case something happens within the new drive.
4. Hopefully this was helpful. I did a lot of trial and error using general guidelines found online, but didn’t find anything for my specific laptop. Good luck!