Pros: Reliable product, runs at CAS5 at 800MHz, and does that at 1.8V. Nice looking memory, with reasonably solid blue heat spreader. Runs at 5-4-4-12 if you have a motherboard capable of manually setting those timings, and is rated to do so at 1.8V. Worry free memory for Dell or other computers that use proprietary motherboards that will only supply 1.8V to the memory, and which cannot be manually adjusted. (Runs at 5-5-5-18 on these boards, not 5-4-4-12, but is still faster than CAS6 DDR2 which is widely available). Probably the fastest DDR2-800 memory that runs at 1.8V on proprietary systems such as Dells.

Cons: A little (not a lot) pricier than most of the other quality 4GB DDR2-800 kits, and runs at 5-5-5-18 if you do not have a motherboard that can be used to adjust latency timings (although this was done to assure compatibility, so I'm not sure you can really call it a con). It runs at those timings by default to ensure compatibility, which could be considered a major pro of this memory as well.

Overall Review: Bought this Mushkin memory after I sent back a "low voltage" OCZ Platinum kit that did not run at advertised specs at 1.8V. In fact, with the OCZ memory, the Dell computer I was upgrading would not even boot, as the OCZ memory's SPD was programmed to run at aggressive timings by default at 1.8V, which the memory was not capable of doing. With this Mushkin memory, the computer runs the memory at 5-5-5-18, and boots and runs without a problem. Memory passes all tests, and the computer is much faster with the extra memory. This is the memory to buy if you are upgrading a non-user-configurable commercially built system that needs DDR2-800 and will only supply 1.8V to the memory.