A general liquid hard disk 120G is only more than 100 yuan, but the capacity of the liquid hard disk is now 1-2T, of course, it is generally above 500, and it is basically impossible to buy a 120G liquid hard disk. It is recommended to buy a 500G liquid hard disk. It is more than 300 yuan, you can see the 359 on our homepage, the price is very high, of course, if there is a requirement for the capacity, you can buy more than 1T, and the 3T capacity is only 599, which can be said to be very cost-effective and very cost-effective. .
The quotation of liquid hard disks looks like more than 300, the quotation of 1T liquid hard disks is more than 300, and the quotation of 3T liquid disks is more than 500. The quotations of liquid hard disks are relatively cheap. Liquid hard drives are relatively cost-effective, and their performance is not bad. Liquid hard drives are one of the best-selling hard drives in the hard drive industry.
ST3000DM001 3T Liquid Hard Disk ï¿¥455.00
1000G serial black disk liquid hard disk ï¿¥245.00
Seagate Barracuda 1TB 7200 rpm 64MB single disc (ST1000DM003) Reference price: ï¿¥319
Seagate Desktop 2TB 7200 RPM 8GB Hybrid Hard Drive (ST2000DX00) Reference Price: ï¿¥600
Precautions for liquid hard drive purchase The price of liquid hard drives is not high and the price/performance ratio is good. Therefore, liquid hard disks have become one of the preferred hard disks. When choosing liquid hard disks, pay attention to the interfaces of liquid hard disks. At present, most domestic hard disk interfaces are SATA-3 interface, SAS interface, SATA-2 interface, MSATA interface, and CFast. Interface, NGFF interface and SFF-8639 interface PCI-E interface. At present, the SATA-3 interface can be applied to the hard disk interface of most computers.
Pay attention to the size of the hard disk when purchasing liquid hard disks. Because of the difference between notebooks and desktop computers, the size of liquid hard disks is different. Notebook liquid hard disks are generally 2.5-inch small disks, and desktop computers are 3.5. And because the size is different, the voltage between the two is different, so the choice may affect the installed use. Of course, because a desktop computer can use a 3.5-inch hard drive, if you really buy a 2.5-inch hard drive, there are ways to use it, but it is not easy to get the perfect performance in terms of performance.
If it’s a desktop computer, it’s very simple. Just buy another hard disk and install it. This will form a computer with two hard disks. The hard disk capacity of the computer has been expanded by several hundred gigabytes. Are you afraid that things won’t fit?
Note that the memory module you buy must be supported by the motherboard. The current memory has DDR2 DDR3 DDR4, and different memories are not compatible, and you can't even plug it into the motherboard.
The memory adds a 4G of the same frequency and the same generation. The battery is down on the back panel, push the sliding switch, and push down the back cover, you can open the back cover of the notebook, you can see that there is a reserved memory slot and MSTAT hard disk slot inside. If you don't want to use MSTAT's solid state, you can only move your own hard disk to the optical drive position, and the solid state hard disk position. So you have to buy a hard drive bay. Anyway, my K620 is directly used as MSTAT solid state to save trouble, and it's okay for general use. WIN8 is powered on for 8 seconds, and WIN7 is powered on for 18 seconds.
Single Phase Control Transformer
Main components
This product is made of high-strength enamelled wire and high-quality silicon steel sheet. BK series transformer core is shell type, which is laminated by silicon steel sheets; BKC series iron core is C-core type.
Technical characteristics
1. BK, BKC and other series of control transformers (hereinafter referred to as transformers) are applicable to power supply for local lighting in industrial and mining enterprises, power supply for control circuits in electrical equipment, and power supply for signal lights and indicator lights in circuits with AC 50Hz~60Hz and voltage up to 500V.
2. The transformer can work for a long time under rated load.
3. The primary and secondary windings of the transformer are separated. When the secondary has only one winding, it bears all the rated capacity of the transformer. If the secondary has both control, lighting and indicator windings, it is wound separately according to the distribution of winding capacity. For the transformer with single winding and intermediate tap, the capacity of each intermediate tap is less than the rated capacity of the transformer, and only the maximum voltage output terminal can bear the rated capacity.
4. The product meets the standard: GB19212.3-2006.
5. Product insulation grade: Class B III.
Environmental conditions editing broadcast
1. The ambient air humidity is - 5 ℃ to+40 ℃, and the 24-hour average value shall not exceed+35 ℃;
2. The altitude of the installation site shall not exceed 2000 meters;
3. The relative humidity of the atmosphere shall not exceed 50% when the ambient air humidity is+40 ℃. There can be a higher relative humidity at a lower temperature. The average maximum humidity of the wettest month is 90%, and the average minimum temperature of the month is+25 ℃. In addition, the condensation on the product surface due to temperature changes shall be considered.
4. Places without violent vibration and impact vibration;
5. A place protected from rain and snow;
6. The voltage waveform is approximately sine wave.
Single Phase Control Transformer,Control Transformer,Isolation Control Transformer,Machine Tool Control Transformer
Henan New Electric Power Co.,Ltd. , https://www.newelectricpower.com