OEM desktop/Laptop memory ram ddr,ddr2,ddr3/ 512mb

hi,this is Grace.The following are what I want to tell you,spend 1 minite on reading it plz. 1)Plz add my trademanager(cn220141216) or MSN to talk best to check quality,pic,payment and stock 2.The picture is little different from material object. Take the material object as the standard 3)All product has good quality,we don't sell bad one. If you want too cheap one,I am sorry our product is not suitable for your marcket. We are musilin company,so we will never cheat our clients. Please feel relieved 4)If I am not online,leave me message, trademanager Id(cn220141216) I will reply to you ASAP. desktop memory ram ddr3 4gb 1333mhz 1.128MB/256MB/512MB/1G/2G 2.Desktop Computer,laptop computer 3.warranty 1 year.desktop memory ram ddr3 4gb 1333mhz/best quality 1) DDR 400/333 & DDRII 533/667/800 MHz 2) 168/184/240-pin socket type dual in line memory module (DIMM) 3) 2.6V power supply 4) Data rate: 400/333/533/667/800Mbps (max) 5) 2.5 V (SSTL-2 compatible) I/O for DDR I products, 1.8Vpower supply for DDR II products 6) Double-data-rate architecture, two data transfers per clock cycle 7) Bi-directional, differential data strobe (DQS) is transmitted/received with data, to be used in capturing data at the receiver 8) Data inputs and outputs are synchronzed with DQS. 9) DQS is edge aligned with data for read, center aligned with data for write. 10) Differential clock inputs (CK and CK) 11) DLL aligns DQ and DQS transitions with CK transitions. 12) Commands entered on each positive CK edge: Data and data mask referenced to both edges of DQS. 13) Four internal banks for concurrent operation (component) 14) Data mask(DM) for write data. 15) Auto precharge option for each burst access 16) Programmable burst length: 2, 4, 8 17) Programmable/CAS latency (CL): 3 18) Programmable output driver strength: Normal/weak 19) Refresh cycles: (8192 refresh cycles/64ms) . 20) 7.8US maximum average periodic refresh interval. 21) Posted CAS by programmable additive latency for better command and data bus efficiency 22) Off-chip-driver impedance adjustment and on-die-termination for better signal quality . 23) DQS can be disabled for single-ended data strobe operation 24) 2 variations of refresh 25) Auto refresh 26) Self refresh ddr2 ram memory 2gb. 1)If the weight doesn't over 100kg,plz choose express delivery(UPS,EMS,DHL,FEEX,TNT) Usually,DHL is most economic. 2)Import duties, taxes and other customs related charges are not included in freight. Buyers bear all responsibility for all extra charges incurred (if any) 3)If need purchach insurance,tell us plz.and If ur tagert place is not so safe,plz give insurance request. 1)Payment:T/T,westorn union,escrow,paypal,MoneyGram or other 2)Buyers need to pay all sevice charge such as paypel,aliexpress 3)Buyers may consult payment with us(SAMTECH) Name: Samtech Import&Export Co.,Limited. Address: Unit F24B,8F,C Block,ShenFang Building,Zhenhua Road, Futian District,ShenZhen,China. trademanager: cn220141216 Tel: 86-755-36956916 Fax: 86-755-23932510