Qinhuangdao Boyu Technology Co., Ltd. |
|
Second Hand Bitmain S9 13.5T With PC PSU Bitcoin Mining Device
Description
Model Antminer S9 (13.5Th) from Bitmain mining SHA-256 algorithm
with a maximum hashrate of 13.5Th/s for a power consumption of
1323W.
Specifications
Manufacturer | Bitmain |
---|---|
Model | Antminer S9 (13.5Th) |
Release | September 2017 |
Size | 135 x 158 x 350mm |
Weight | 4200g |
Chip boards | 3 |
Chip name | BM1387 |
Chip size | 16nm |
Chip count | 189 |
Noise level | 85db |
Fan(s) | 2 |
Power | 1323W |
Wires | 10 * 6pins |
Voltage | 11.60 ~13.00V |
Interface | Ethernet |
Temperature | 0 - 40 °C |
Humidity | 5 - 95 % |
ASIC miner
ASIC miner refers to the miner which uses ASIC chip as the core
operation part. ASIC chip is a kind of chip specially designed for
a specific purpose. It must be noted that it is not only used for
mining, but also has a wider range of applications. This kind of
chip is simple and efficient. For example, bitcoin adopts the
sha256 algorithm, so bitcoin ASIC miner chip is designed to only
calculate the sha256. Therefore, in terms of mining, the
performance of ASIC miner chip exceeds the current top computer
CPU. Because ASIC mining machine has absolute advantage in
computing power, so computer, graphics card mining machine began to
be phased out
What's mining? What's bitcoin?
1. Bitcoin mining machine is a kind of computer used to earn
bitcoin. This kind of computer generally has professional mining
chips and works in the way of burning graphics card, which consumes
a lot of power. It is one of the ways to get bitcoin that users
download software from personal computer and then run specific
algorithm to get corresponding bitcoin after communicating with
remote server. Mining is actually a competition of performance and
equipment, and a competition of computing power among miners.
Miners with more computing power are more likely to dig bitcoin.
With the increase of computing power in the whole network, it is
more and more difficult to dig bits with traditional devices (CPU,
GPU). People have developed chips specially used for mining. Chip
is the core part of mining machine. The process of chip operation
will produce a lot of heat, in order to cool down, bitcoin miner is
generally equipped with heat sink and fan.
2. Bitcoin is a kind of virtual currency. Bitcoin mining system is
the process of carrying out mathematical operation for bitcoin
network through computer hardware. The miners who provide services
can get a reward, because the network reward is calculated
according to the tasks completed by the miners, so the competition
for mining is very fierce. Bitcoin mining began with low-cost
hardware such as CPU or GPU, but with the popularity of bitcoin,
the mining process has changed greatly. Nowadays, the mining
activities are transferred to the field programmable gate array,
and the hash speed can be achieved through optimization. The mining
efficiency of this mode is very high.
All sales are final. No refunds will be granted. Used Miners are
out of warranty. Defective miners caused by transportation can be
repaired at the cost of parts and labor and Customer must return
the defective parts at his/her own expense.
We does not take any responsibility for or compensate for any loss
as result of downtime caused by delays in transportation as a
result of custom formalities or other reasons.
1. Brand New Miners Selling
2. Used Miners Testing and Repairing Services
3. Used Miners Sources
4. Responsive Reply
5. Professional Knowledge in Mining Area
6. Dropshipping service available
Boyu Technology is with an energetic and professional team in
mining business for 3 years, including reselling, repairing and
hosting services.
Our Repairing Department locates in Shenzhen while we also have
mining farms in west of China.
You are most welcome to visit us and check the quality before
buying, especially for used miners.
Free cleaning service will be provided. Back Up accessories will be
given.
After-Sales Services guaranteed.
1. How can I trust you?
A: We can do Escrow for you as long as you willing to pay the
transaction fee.
2. If my miners dont work, what can I do?
A: All miners will be tested before shipping out. We will teamview
and help you to solve the problem for programing issues. For large
quantity, we will provide back up accesorries, like control board,
hashboard for you to replace right away. More discounts can be
negotiated.
3. Is mining still profitable?
A: Hard to say.
4. What models is the best?
A: It depends. Your electricity cost, your budget, and how you know
the market etc are elements for you to consider.