Review on 💻 High-Performance 4GB DDR3 Ram Memory - PC3-12800, 1600MHz, SODIMM 204 PIN - Ideal for Laptops by Lamont Manjrekar

I bought this from Antlas Technology. Arrived 3-4 days after purchase via USPS. Please check your store's "Rank" before ordering. Use a free application like CPU-Z or similar. These are memory modules of rank "1" or "single rank". (SODIMMs with 1x8 chip configuration). They work well with other single-rank memory modules in dual-channel motherboards. They run in a dual-channel configuration with a dual-ranked SODIMM, but with slightly reduced memory bandwidth (12.8 vs. 13.6 GB/s according to memtest 86). Personally, I would match any SODIMM you have in your laptop with the same memory configuration (both single rank and dual rank memory, slight difference in speed that probably isn't noticeable with real-world average usage). This single rank memory alone was about 5-10% slower in memory bandwidth than when combined with the dual rank Crucial CT51264BF160B component that I first purchased for a memory upgrade in a Dell 3558-5500 i3 5015U laptop. I decided to find this Hynix on the internet which is a perfect match for SODIMMS. Didn't want to delve into possible future memory issues, they're hard to diagnose conclusively. So, in conclusion, either match the exact memory installed in your computer, or remove it and replace with another suitable pair of the same type, rank, speed, etc. FYI, the Dell laptop mentioned comes with a 4GB Hynix with a SODIMM rank. installed and has an open slot for a second. Dell claims a total of 8GB is allowed. I've found that many Dells allow more memory than advertised (to differentiate product pricing?) but haven't tested more memory on this computer. Your mileage may vary.