Kingston Hot SSD quietly swapping inferior flash

Kingston SSDNow V300 is a very popular in the low-end market of a solid state hard drive, cheap, good performance, but recently there are users reported that the new 506A firmware version of the performance is poor, AS-SSD test continued to read faster than 300MB/S. What's happening? Like many solid-state hard disk OEM vendors, Kingston buys the wafer in the purchase of NAND Flash, and then verifies, cuts and encapsulates it. The advantage of this is that it can greatly reduce costs, but the downside is that unless the manufacturer publishes itself, outsiders cannot know the flash supplier. If in accordance with the formal process, this is understandable, but the key is that capital is chasing the maximization of profits, there are loopholes who can not live without drilling? The biggest negative characteristic is OCZ, the "white piece" problem completely smelly oneself. Although Kingston is a factory, but also can not immune, play the replacement of "inferior" flash memory tricks. AnandTech after verification, SSDNow V300 first generation (including the media evaluation samples) with Toshiba 19NM Toggle 2.0 Flash particles, but do not know when, silently replaced by the United States optical 20nm asynchronous Flash. You know, the former interface bandwidth up to 200mb/s, and the latter is usually only a mere 50mb/s--in fact, whether Kingston or Onfi norms of the latter are not clearly stated, can be seen insignificant. Below is the 505A firmware, Toshiba Flash and 506A firmware, AS-SSD uncompressed data measured performance comparison: The gap is too obvious, the new version of the speed is almost miserable, four indicators were shrunk 64%, 43%, 25%, 41%. Kingston did not make any public statement about the conversion, and the media questioned the query to explain that they did not want to deliberately reduce product quality, but for material cost considerations, and are seeking new flash supply. Kingston also said that they had considered changing the name of the product to V305 to avoid confusion, but eventually decided to name the same. In short, prepare to start V300 must be careful.