Please give me 2 minutes to read note as below:It is powered by Coin Battery (CR2032 Or LIR2032) Or 5V Type-C power input plug,Note: Listing item does not include the Coin battery.Package Included:1 x Card (Excluded Coin Battery)All part numbers and the photo must match for proper compatibility. Please do not just look at the title model to buy,You need to physically match up the one you need with the ture and part number. Be sure to remove your existing part from your hines,As each model in a series may be configured differently and different parts.Our list is just a reference and you may find your model differs.You need to physically match up the one you need with the ture and part number. otherwise, we are not responsible for mistaken purchase.Will usually sh within 48hours of receiving cleared payment.Please feel free to contact us if you have any questions.We will soe your questions as soon as poible!(except Sun.&most national holidays.)Features:Descrtion:This card is d for Desktop 4 and . It is support theDesktopusing lightne and darkne of lead to stand for the sign of data line ae. It rep the ditional way and become more effective.Features:1.Suitable forDesktop4 and 2 types .2.Using patch components, no hurt to your hands.3. It is a good choice to repair theDesktopcomputer .Memory product introduction:Aiming at the hardware fai points of memory, our company has developed this 5 and 4 memory maintenance , which can easily soe various fai of memory hardware, and the method of light-emitting tube indication to rep the ditional manual measurement method with a . and easily find the fault point according to the LED brightne indication. a computer novice can also become a top memory repair expert.Instructions for :1: Insert the battery (CR2032, 3.6V)(Excluded battery) into the battery holder of the test card, and insert the memory stick that needs to be repaired into the slot of the memory . Hardware is fault free. If the indicator light fes, it means that the gold finger is in poor contact. If the indicator light is off, it means there is an open circuit fault. Check whether the gold finger is dirty, the resistance is damaged or the circuit is open circuit. According to the pin number of the indicator light, a . Find the point of fai. If one or more of the LEDs are particularly lit, there is a short circuit fault.2: Ar the hardware test of the memory module is paed, the fault of the video memory should be considered, and the faulty video memory should be found by replacing one by one or testing with the corresponding test .Item contains : 1pcsCompatible Part Number : (will be sh out)Part Number :ID: 19935Note: Pls check the listing item photo and part number with your item. It's 100% full d working. Sh Compatible part number, In bulk pack, may have very minor scratches from long time storage or nsportation,if you are very care about the item conditions,pls contact us before you e purchased.Thanks.