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	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
Supply	200–240 V AC

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.

Related hardware and where this sits in the store

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

Category: Need Parts. Or browse the full ASIC miner inventory.

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.

How this unit was tested

A used-hardware seller who will not tell you how they test is asking you to take the grade on trust, so the procedure is public: the six-step bench procedure a machine goes through before it gets a grade and a listing, 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 arrives, run the 48-hour acceptance test before the freight claim window closes.

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)