FAQ

Who are you? Could I know more about your company?

Being a pioneer in the field of Blockchain mining, Jconwell is committed to providing the highest quality miners, excellent service and innovative solution to our clients since its establishment in 2014. With the continuous efforts and rich experience from our professional team, Jconwell has become the leading supplier in the field of cryptocurrency miners and gained a reputation of being a trustworthy partner for both domestic & foreign markets.

what’s your advantage?

• Largest stock • Most competitive price • Fastest delivery • Professional team• Reliable service. You’ll get an ultra good purchasing experience with our team.

where is your location ? How we know if you are reliable ?

We’re powerful and leading miner supplier. And we have several branches and office spots providing professional service and technical support to our customers. The locations are as below:
Headquarter office : Minzhi 1901D,longhua, Shenzhen ,china
Futian branch: Saige 5504, Futian district, Shenzhen, China
Longhua branch : 2302 Changjiang Center, Longhua distric, Shenzhen city, China
Warehouse : Sichuan, Hubei, Shenzhen, Hunan

Any product pictures or video could be shared?

Yes. We’ll upload some latest products on our website or e-business platform. You could get newest information from these web.
Company web: https://jcw.business.page/
Made-in-China: https://jconwell.en.made-in-china.com/
Globalsource: https://www.globalsources.com/si/6008847710210/Homepage.htm?id

Does this have any operating hours on it?

Yes it has about a months worth of operating hours on it.

Do i strictly have to put it in a cold room

No, in fact extremely cold temperatures can damage the miner. However, you also don’t want to put it in an extremely hot room either. Think room temperature or maybe slightly lower.

Do i strictly have to put it in a cold room

No, in fact extremely cold temperatures can damage the miner. However, you also don’t want to put it in an extremely hot room either. Think room temperature or maybe slightly lower.

will the included power supply accept 240v? Is a power cord included with G type end?

Yes the power supply accepts 220-240v. The power cord included is US spec 15amp computer cord.

Do you provide enough tech-support to get up and running and mining.

Create a wallet at your favorite coin wallet site. connect the miner to your favorite hashing pool and follow their instructions of the configuration to put in to the miner setup

As at now how much does this miner make daily in usd ?

see the URL below: https://www.cryptocompare.com/mining/calculator/ltc?HashingPower=504&HashingUnit=MH%2Fs&PowerConsumption=1000&CostPerkWh=0.1

Do you have use another computer to initialize the mining or make changes to your wallet ID I have never used one of these before

You will need to have computer access to the network the miner is on to setup your pool information and wallet ID. However once your miner is configured you can run your setup standalone.

How about the warranty /maintenance time if out of America (eg. vietnam?)

You will get full support and warranty from the factory that manufactures them. Link for details:
https://shop.bitmain.com/productDetail.htm?pid=00020170720160427054s4esa02w06A9

If I purchase today when will it be shipped ?

It usually takes 1 to 2 business days after the day you place an order, to process, pack, and ship any orders which is a standard practice for all Amazon sellers. Thank you.

good afternoon I would like to know that I cover the warranty of the equipment you can deliver configured

Hi, the equipment is covered by Bitmain warranty against manufacturing defect under normal usage conditions.

Does this work with American power supply in a standard home?

Yes. Power supplies do not come with cords because of voltage differences such as a 240v or a 120v plug so make sure you include power cords with your purchase

Give me the reason why I should choose Jconwell?

We have been in this field for more than 7 years, we firmly believe that products with highest quality and first-rate customer service are the key to survive and grow. There are many companies are selling miners in the world, but few offer the distinct advantages that set Jconwell apart from the competition. Our commitment to effciency, flexibility, professionalism and reliability has been the path to success for our company, we are continuously working to ensure that we meet and exceed clients’expectations.We love what we do and are passionate about helping our clients to grow their value.

How is the payment method?

We accept TT and USDT payment method.

How about your warehouse and office look like could I visit your company?

Yes sure. We’re warm welcome your visit.

Does this work with American power supply in a standard home?

Yes. Power supplies do not come with cords because of voltage differences such as a 240v or a 120v plug so make sure you include power cords with your purchase

Is there a warranty on the Item ??

The new miners have a factory warranty. All used, or refurbished are sold AS-IS with after-sales support to help with your issues.

Where does the product ship from?

We ship from Michigan and have them in-stock with immediate shipping

will the included power supply accept 240v? Is a power cord included with G type end?

Yes the power supply accepts 220-240v. The power cord included is US spec 15amp computer cord.

Where does the product ship from?

We ship from Michigan and have them in-stock with immediate shipping.

What else do I need to start mining with this?

Standard Computer Power Cord (NEMA 5-15P to IEC 320 C13)
They’re around $6 and length depends on your setup location. Then login to your IP address to find the miners IP address, and type it’s address into your web browser. So you also need internet access and a web browser if you don’t already. You also need an Ethernet cable Cat-5 or Cat-6 to plug in to your modem. Make sure you understand the scope of mining before purchasing these

it's new? Does it come with its source of power?

Yes and yes.

Can this antminer mine bitcoin?

No, it can only mine coins with the "Scrypt" algorithm. Bitcoin uses the SHA256 algorithm.

can you link a power cord for 110 volts??

While not recommended, you certainly can use a 110V circuit. 220V is much easier on all electronics and safer due to lower amperage/heat/resistance. Depending on how many you would like to run, I can recommend affordable power distribution units that will safely distribute to multiple power supplies and can be connected to a higher voltage circuit.

Hi, I want to know if this device needs air conditioning to work properly or the two fans are enough to maintain it working without shutdowns?

Hi, The fans are adequate, and they do go bad – you need to check the dashboard several times per week to ensure they're still operating properly. I'd buy some backup fans to have on hand, so you're never down too long. I've been running 5 of these L3+ units in our warehouse over the summer in 95 Degrees Fahrenheit with zero problems. I have a couple big industrial fans also helping with air circulation. Air conditioning is definitely better for longevity of the units, although it is another expense you'll have to consider. If you are just using one machine, you'll be fine without A/C. If you want to start a big mining farm, you either need great ventilation with fans pulling air in and pushing air out, or you need a good server-type quality air conditioning system. You should also keep the environment very clean – and turn the units off for several hours every 2-3 weeks and blow the dust out of them with an air compressor. Those handheld can air bottles will work as well, but not quite as effective. Happy Mining!!

I read there are differents pools which is better in profit?

I prefer prohashing.com. It mines different coins that are the most profitable at the time and you can get paid in any currency you want.

Setup my antminer thru the IP addressand it keeps timing on error. Anyone have any ideas want s going on

go to Bitmain web page look in suport on find my ip address then login to your s9 web page for settings some time you have to reload firmware or do a factory rest

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