Refurbished Antminer S9j 14t 14.5t Asic Miner Machine with original bitmain power

S9j is an upgraded version of S9i and S9.

Compared with the S9 version, the S9j has higher noise decibels, but it shows a certain degree of upgrade in terms of computing power, power consumption and cost performance.

The position of the three hashrate boards is fixed in parallel through the internal card slots.

After taking out one of the power boards separately, you can see that each power board carries 63 chips.

The surface of the circuit board is densely distributed with a block of heat sinks, which are distributed on both sides of the chip.

The location of the chip and the heat sink on the circuit board and the materials, height and thickness of the front and back of the heat sink are not the same, and the design has obviously undergone special differentiation treatment.
There is only one main and most fundamental reason for this design, which is to allow the air-cooled heat dissipation system to exert the greatest heat dissipation effect.

Specifications

DongXin Miner is a trading company focusing on quality and products. The company is mainly engaged in asic mining machines, graphics cards and accessories for mining. It has test points and warehouses in Shenzhen and Dongguan. There are more than 30,000 machines in stock, and an average of 300 machines are traded daily. It is the first-level agent of major brands of mining machines in the country: such as Antminer, Whatsminer, Innosilicon, Avalon, Ebit, etc., as well as the trusted partner of major miner farm owners across the country, selling new and second-hand mines The product range of the machine is complete, the price is reasonable, and the quality is strictly controlled. Each machine has been strictly tested and sorted to ensure that every customer is very satisfied with the product.

When you choose us, you have not only chosen quality, but also safety.