What are my qualifications for making this review? I know stuff about things!... is what Phillip J. Fry would say. But seriously, I have an MS in Computer Science, and have been fixing computers for years (think my best fix story was restoring a dead hp laptop with a "cooked" motherboard --geek squads words, not mine-- by jumping two power pins with a twisty tie... MacGuiver status right there; but I digress).
Why do you need a 2 GB kit from Crucial? To up your RAM memory (or replace bad memory in rare cases) and up performance...duh! Doesn't stop there though. Crucial is by far the best performance and most stably build memory I've used since 72 pin SIMM EDO back in the day (though I don't think I ever purchased such ram from crucial). It's always been right for the price. Unless you're a hard core gamer, the basic crucial memory will work great.
What is this business about better battery life? If your laptop has a hard drive and not a solid state drive, you have moving parts. Moving parts means motors and actuators and higher power consumption. I'll lend you this analogy: a hard drive is a filing cabinet, and RAM/memory is a desktop. When you need files from your filing cabinet, you pull them out, and put them on your desktop to write on... working out of the filing cabinet is not an option right? When your desktop gets too full though, and you need more stuff out of the cabinet you need to put files away to clean some space the new files (lets say it's tax seasons or something). Now if you're using on of those desks from elementary school, you're going to be pulling files and putting files back into the cabinet often right? Now if you're desktop is, lets say, a 4x10 foot kitchen counter, you can pull out a lot of files, and not need to put them back into the cabinet. In our analogy, it means we use the hard drive less often. Since the hard drive isn't moving, it requires less power, and thus less strain on the battery. Another benefit of this, it preserves the life of your hard drive (moving parts are subject to wear and tear; similar to a car).
But shouldn't I be looking for like 8 GB or 16 GB? Depends on the computer. This 2 GB kit was ideal for an older Core 2 Duo laptop that was running a 32 bit version of Windows. It peaked the total memory of the computer to 4 GB, or which Windows could only use 3.5 GB (because it is 32 bit). If it's a newer computer, it's probably a 64 bit version of Windows in which case, this probably isn't the memory you need anyway (hardware-wise it won't fit... go to crucial.com, they have a tool to tell you what type of memory you could use).
How much memory is enough memory? Depends on the user. Generally speaking if you see that hard drive light blinking (or you hear a lot of clicking) after the computer has been on for a while (analogy: the desk has all the commonly used files from the cabinet), that means, you need more memory... *Generally*. It might also mean you just need to do a fresh install of your operating system or remove some malware. To save the time and hassle, if up'ing the RAM is only a 20-30 dollar venture, its worth trying to see if it fixes the problem. Either way, it is a performance boost to your system.
Summary (tl;dr): If you have a laptop that takes this type of ram, and it is increasing the amount of ram (with the caveat that anything above 3.5 GB's of RAM on a 32 bit version of Windows is essentially useless) you have in the system, it is worth it (especially at this price). It will prolong how long you can run on battery, make the computer snappier once fully booted, and prolong the totally life of your hard drive. Crucial memory specifically in my experience never fails (goes bad).
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This Item  Crucial 2GB Kit (1GBx2) DDR2 667MHz (PC2-5300) CL5 SODIMM 200-Pin Notebook Memory Modules CT2KIT12864AC667 |  |  | |  |  | |
| Price | $24.67 | $34.99 | $13.98 | $34.99 | $79.49 | $13.23 |
| Delivery | — | Get it May 16 - 20 | Get it as soon as Tuesday, May 14 | Get it May 16 - 20 | Get it May 16 - 20 | Get it May 16 - 17 |
| Customer Ratings | ||||||
| Value for money | ||||||
| Easy to install | ||||||
| Sold By | MemoryMasters | Memorybank | kuesuny | Memorybank | Memorybank | A-Tech Components |
| computer memory size | 2048 MB | 2 GB | 2 GB | 4 GB | 4096 MB | 2 GB |
| memory speed | 667 MHz | 1333 MHz | 667 MHz | 667 MHz | 667 MHz | 667 MHz |
| RAM tech | SODIMM^NON-ECC | DDR3 | SO-DIMM DDR2 | SODIMM^NON-ECC | DDR2 | DDR2 |
| number of items | 1 | 1 | 2 | 1 | 1 | 2 |
| data transfer rate | 667 MHz | 1333 MHz | 667 MHz | 667 MHz | 667 MHz | 667 MHz |
| number of pins | 200 | 204 | 200 | 200 | 200 | 200 |
| compatible devices | Laptop | Laptop | Laptop | netbook, Laptop | netbook, Laptop | Laptop |
| form factor | SO-DIMM | Laptop | SO-DIMM | SO DIMM 200-pin | SO-DIMM | SO-DIMM |
| CAS latency | 5 | 9 | 5 | 5 | 5 | 5 |
From the manufacturer
Make everything on your computer faster
Multitask with ease
Easy to install
Maximize the value of your system
Make everything on your computer faster
The amount of memory in your system plays a critical role in the speed of loading apps, browsing the internet, and editing a spreadsheet. Add more memory for faster performance.
Multitask with ease
Every app you’re running requires memory and competes for a limited pool of resources. Overcome this by installing high-density modules in each memory slot for seamless multitasking.
Install with ease – no computer skills required
With just a screwdriver, your owner’s manual, and a few minutes of time, you can install memory – no computer skills necessary.
Maximize the value of your system
At a fraction of the cost of a new system, a memory upgrade is one of the most affordable ways to increase performance. Get more out of your notebook by giving it the resources it needs to perform.
Reviews with images
Works great with old and new Macbook
This works great with my 1 year old Macbook. During installation I thought I had pushed the RAM modules far enough into their slots, but after the MacBook failed to start up I took another look and found out that you really do have to push firmly and carefully past some initial resistance until the RAM goes in all the way. You may have to push harder than you think is normal, but seriously, you have to push pretty hard.Other than that I would like to note that my macbook was only allowed a maximum of 2g of RAM so check your system.Also the image is very deceiving it should be 2 sticks not one. I'll just upload an image so people like you won't get any more confusion!
Top reviews from other countries
Amazon Customer
Crucial CT2KIT12864AC667 2 GB (1 GB x 2) Speicher Kit (DDR2, 667MHz, PC2-5300, SODIMM, 200-Pin)
Reviewed in Germany on January 31, 2019Camanini Simone
Crucial SODIMM DDR2 667 MHZ kit da 2pz*1gb
Reviewed in Italy on April 2, 2019E. Ralph
Excellent product, a worthwhile upgrade
Reviewed in the United Kingdom on September 3, 2011