After buying a second-hand book, is it not a pit?

Today, a small partner asked Xiao Bian whether second-hand mobile workstations can be bought... Finally, some people asked about the problem of rubbish dumps. Hehehehe, this is Xiaobian's specialty. Today, I’ll give you some information about second-hand laptops.

Where did the second hand come from?

The source of used notebooks is currently divided into several categories. The first is the largest source. Enterprises eliminate replacement notebooks. Usually, each batch of products is from the same company. The second is the products recovered by professional second-hand computer recycling companies. Products have certain quality control management (too bad not to accept); the third category is the inventory, prototype, spare parts assembly models. Of course, there is a small part of the user's own model sold through salted fish, because the proportion is too small here is not subdivided.

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Three brands monopolize the secondary market

At present, second-hand laptops mainly focus on three brands: Dell, HP, Thinkpad. These three brands of commercial models (note that it is a commercial model) occupy the majority of the "share" of the secondary market, followed by more than some Apple notebooks; the last category is a small number of Japanese brands, such as Fujitsu, Toshiba Used laptop.

Why the secondary market is mainly these several brands of products? The first is sales. These brands are already the biggest sellers. The chance of eliminating them is certainly greater. The second is the durability of the products. Commercial notebooks have always been more expensive than ordinary home notebooks because of the quality of the parts. There are more requirements on the structural design, and even after being eliminated by the company, it can usually maintain a good working condition;

Where are the differences in assembling second hand?

Used notebooks, in addition to pure second-hand books, there are many refurbished and processed, which has formed a complete industrial chain. Upstream, there is a special company responsible for bulk "purchasing" and purchasing these used notebooks; handing over to "professional" refurbished factories, repairing defective parts, replacing parts that need to be replaced, and even printing professionally. Ask you afraid? Finally, the “factory” agent shipped the goods to the retailer, so it eventually appeared on a website like Taobao.

Assembled refurbished machines: The keyboard can be completely refurbished and sprayed. The screen may be replaced. Some hard disks and memory may be replaced, and the damaged casing may be replaced. The "finished product" even reaches a brand-new level.

Pure second-hand: without any changes, only testing the integrity of the system, this type of product is mainly Japanese second-hand this is more, because not many accessories, can not be a large-scale replacement of "production."

Why can not buy spicy hot?

Simple answer: Yes. Xiao Bian started buying such second-hand books from the Thinkpad T61, all the way to the Thinkpad T420, HP EliteBook 8460P, HP EliteBook 840G2, etc. The price was generally around 3,000 yuan, and there was no problem using it for several years.

First, Xiao Bian never pursues pure second-hand, no-refurbishment and no-repair models can be encountered.

Second, the technical capacity of professional refurbished factories is indeed limited, but now the integration of the models is very high, and the maintenance and sales are relatively small. Basically, the bad parts are replaced. The important parts are basically the original goods, so most of the cases are only the installation problems. .

Third, Xiao Bian never buys memory and hard disks when buying, and it is safer to buy it on its own. Some second-hand memories are of poor quality and their stability is not known. They are not as comfortable as they are equipped with. Data on the hard disk is priceless. Buying a new hard disk is not excessive!

The last thing to say is that the second-hand basics are relevant to the experience. If there is not much understanding in this area and little knowledge, it is better to choose carefully! After all, it does not rule out the possibility of winning the problem.