Antminer L7 Overclock MicroSD - Remove Card to Revert

Q: What does the machine this card is for mine?

The Antminer L7 mines Litecoin and Dogecoin, merge-mined, on Scrypt. It does not mine Bitcoin and it does not run SHA-256. The card itself does not mine anything — it is the firmware image the miner boots from, and taking it out returns the machine to stock.

Description

A microSD card imaged with overclocking firmware for the Bitmain Antminer L7. It works the simplest way any firmware mod can: power the miner down, insert the card, power it back up. Take the card out and the machine goes back to stock. That reversibility is the genuine appeal — you are not flashing anything permanently.

What the Antminer L7 actually is (this page used to get it wrong)

The L7 is a Scrypt miner. It mines Litecoin and Dogecoin. It does not mine Bitcoin and it does not run SHA-256. A previous version of this page listed “Hash Algorithm: SHA-256” and “Compatible Currency: Bitcoin”, which is wrong on both counts, and it also quoted hashrates in “GHz” — a unit of frequency, not of hashrate. The correct reference figures for the machine this card is for:

Algorithm	Scrypt
Coins mined	Litecoin (LTC) and Dogecoin (DOGE), merge-mined
Stock hashrate	9,050 MH/s — that is 9.05 GH/s, on the L7 9050M
Stock power	~3,260 W (some vendors publish 3,425 W for the same model)
Stock efficiency	~0.36 J/MH
Input voltage	200–240 V AC

What’s in the box

1 × Overclock Bitmain Antminer L7 9.5G 9050GHz 8800G
Nothing that is not listed above. Cords, controllers, brackets and spares are only included when this listing names them — if you need to know before you pay, ask on +1 (781) 577-0377 or ns@ingmining.com and we will confirm in writing what is physically in the crate

About the “up to 11 GH/s” figure — the honest version

Our own listing title says up to 11 GH/s and we are not going to let that stand without qualifying it. Treat 11 GH/s as a best case on a well-binned, well-cooled machine with real PSU headroom, not as a specification. What you actually get depends on the individual unit’s silicon, its intake temperature and whether its power supply can deliver more than stock. Some machines get close; some do not get near it.

Three things people underestimate, so we will say them plainly:

Power rises faster than hashrate. Overclocking makes a machine faster and less efficient — your J/MH gets worse, not better. If your electricity is expensive, an overclock can move you further from break-even, not closer. The buying guide has the arithmetic.
Your PSU has to carry it. A stock L7 supply sized for ~3,260 W does not have unlimited spare capacity. An overclock that the boards can survive can still be one the PSU cannot.
It shortens the machine’s life and voids the manufacturer warranty. More heat and more current through the same hardware is the trade you are making. On an out-of-warranty machine that may well be worth it. On a new one, think harder.

What ships, and what backs it

A microSD card carrying the firmware image, plus a how-to manual, plus free configuration consultation by remote desktop, text or WhatsApp. The card’s capacity and brand vary — the image is small and works on any of the sizes we ship. This is third-party software on a generic card, so per the listing it is non-returnable. Earlier copy on this page promised a 6-month manufacturer’s warranty; there is no manufacturer behind an imaged SD card, and the claim contradicted the non-returnable term on the same page, so it has been removed. Ask us anything before you buy — this is a product where the conversation beforehand is worth more than the returns policy afterwards.

L7s and other Scrypt hardware are in LTC / Doge / Bel miners. Repair parts, fixtures and firmware tools are in repair parts and tools.

Condition and warranty

This listing does not state a condition grade or a warranty term, so we are not going to imply one. The parts and repair shelf carries both new spares and as-is units, so the category is not the answer either. Before you buy, ask us and we will tell you what we actually have — whether the card is new and sealed, or has already been imaged and handled, and which firmware build is on it — and put any coverage in writing. Ask us about this unit.

Questions buyers ask about this part

Does the card need its own power or a special circuit?

No — this listing is a microSD card, and there is nothing here to plug into a wall. It is read by the miner’s own control board. The 200–240 V AC and ~3,260 W figures in the table above belong to the Antminer L7 the card is for: that machine needs a dedicated 200–240 V circuit, and an earlier version of this answer presented the requirement as though it were the card’s. If you are sizing the circuit for the L7 itself, work from those figures and have an electrician confirm the supply.

What does the machine this card is for mine?

The Antminer L7 mines Litecoin and Dogecoin, merge-mined, on Scrypt. It does not mine Bitcoin and it does not run SHA-256. The card itself does not mine anything — it is the firmware image the miner boots from, and taking it out returns the machine to stock.

Is this a complete, working machine?

No. This listing is on the parts and repair shelf, which holds both brand-new spares and bench tools and as-is units sold for repair. Which of those this one is, is stated in the description above — read it before you order, and ask us on +1 (781) 577-0377 or ns@ingmining.com if anything about compatibility with your fleet is unclear. We would rather answer the question than take a return.

What should I check the day it arrives?

Photograph the pallet or box before you open it, keep the packaging, and run the 48-hour acceptance test straight away. Freight claim windows are short, and a fault found on day two is a conversation while a fault found on day thirty is an argument. Our own six-step bench procedure is published in full, so you can repeat exactly what we did.

Shipping cost for this exact item, and how warranty and returns work here, are answered in the Shipping & buying tab on this page. Anything else, ask a person on +1 (781) 577-0377 or ns@ingmining.com — we would rather talk before you buy.

An overclock is not a repair, and it costs you efficiency

Be clear about which of the two things you are buying. A part restores a machine to what it was. This card makes an L7 do more work and draw more power to do it, and because power climbs faster than hashrate, the machine’s efficiency in J/MH gets worse, not better. That is not a criticism of the card — it does exactly what it says — it is the trade you are accepting, and on a Scrypt machine drawing around 3,260 W the electricity side is the whole of the economics.

The reversibility is the genuinely valuable part. Take the card out and the miner returns to stock, which means you can test the trade against your own power bill rather than argue about it: run stock for a week, run overclocked for a week, compare the meter against the pool. Very few firmware decisions in mining can be undone that cleanly. used vs new ASIC miners sets out why a machine’s break-even electricity price, not its headline hashrate, decides whether it is worth owning at all — the same arithmetic applies on Scrypt, with Litecoin and Dogecoin difficulty in place of Bitcoin’s.

Machine and parts prices read off our own shelf on 16 August 2026. Parts only — we publish no bench labour rate, so nothing here is a fitted price.

Related hardware and where this sits in the store

Parts, fixtures and tools that go with the same repair job:

Category: Need Parts.

Where this listing sits

This one is on the parts and repair shelf. That shelf holds two different things: brand-new spares and bench tools, and as-is units sold for repair. Which of the two this listing is, is stated in its own description — read it before you order.

What our grades mean

These are the only words we use, and each one means a specific thing. They are not interchangeable and we do not soften them to move stock.

New	Unused stock. Factory sealed unless the listing says otherwise — “new, open box” means exactly that, and the listing will say it.
Tested working	Second-hand, and it ran on our bench at the hashrate the listing states. We measured it; we are not repeating what the last owner told us. Expect cosmetic wear.
Refurbished	Tested working, plus work done: cleaned, thermal paste and fans dealt with, failed components replaced. The listing says what was actually done to that unit rather than using the word as decoration.
As-is / for parts	Sold with no working claim at all, at a price that reflects it. Buy these to repair or to harvest. If a listing says as-is, assume it does not hash until you have proved otherwise.
Untested	We have it, we have not powered it, and we are not going to pretend we did. Rarer than as-is and always stated explicitly.

What a grade here does not mean

Cosmetic wear is not a fault. Dust, scratches, scuffed labels and discoloured plastics are normal on hardware that has been earning. We photograph what we have; if the pictures matter to you, ask for more and we will take them.
A grade is not a warranty. Warranty terms are stated per listing, never per store — see the Shipping & buying tab. A tested-working grade describes what the machine did on our bench, not what we owe you in six months.
A boosted hashrate is not a spec. Where a unit ships on tuned firmware we say so and we give the factory figures too, because overclocking raises power faster than it raises hashrate — a tuned machine is less efficient per terahash than stock, not more.
We will not invent a grade to fill a field. If a unit came in without history and has not been through the bench, its listing says that.

How the grade gets decided

A used-hardware seller who will not tell you how they test is asking you to take the grade on trust. Ours is published: the six-step bench procedure every machine goes through, and the five measurements that get recorded — per-board hashrate, chip count, measured wall power rather than the nameplate figure, hardware error rate, and temperature under sustained load. When it reaches you, run the 48-hour acceptance test straight away, while the freight claim window is still open.

Buying second-hand for the first time? How to buy a used ASIC miner without getting burned is the long version, written from the repair bench rather than from a spec sheet.

Shipping

Shipping this item inside the United States costs $49.99 by UPS Ground — that is the rate the checkout will charge, read from the store’s own shipping settings, not an estimate. Orders ship within 7 business days.

Outside the United States the checkout quotes a flat international rate. On multi-unit or pallet orders, contact us before ordering so freight to your destination can be confirmed properly. What to check when the pallet arrives, and how a freight claim works, is covered in the mining hardware shipping guide.

What to do the day it arrives

Photograph the pallet or the box before you open it, and keep the packaging until you are satisfied. Freight claim windows are short, and damage found on day two is a conversation while damage found on day thirty is an argument.

Then run the 48-hour acceptance test straight away, while that window is still open. It is the same ground our own bench covers, so you can compare like for like: how the grade on this listing was arrived at, and the five measurements we record, are set out in the Condition & grading tab on this page.

Condition, warranty and returns

Condition: Repair part or bench tool — this shelf holds both new spares and as-is units, so read the condition stated in the description.

Warranty is stated per listing, not across the catalogue. Some units carry a manufacturer term and say so above, naming the term and the date it runs from. Many units, particularly used and AS-IS stock, carry none, and those listings do not claim one. There is no blanket warranty covering a catalogue that runs from sealed factory stock to a hashboard sold for parts. For what a mining warranty normally covers, see ASIC miner warranty explained.

Returns: ask for the terms on this unit before you pay. No single returns window is published for the whole store, because the sensible terms on a tested working machine and on a board sold AS-IS for parts are not the same terms. Email or call and ask what applies to this exact item — it is a two-minute conversation and a great deal cheaper than a dispute.

Who you are buying from

ING Mining LLC, Hanson, Massachusetts. ING MINING® is a registered U.S. trademark; our marketplace feedback is on the reviews page and the longer version of who we are is on about. Reach a person on +1 (781) 577-0377 or ns@ingmining.com.

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Description

What the Antminer L7 actually is (this page used to get it wrong)

What’s in the box