Antminer KS5 Pro; Reviewed & Scored | The Block Note
Crypto ASIC Mining Hardware Review · Updated September 2026

Antminer KS5 Pro: Bitmain's own answer to Kaspa mining, sold with a hosting company's math that isn't just optimistic, it's the wrong sign entirely.

We're continuing our Crypto ASIC Mining Hardware series with the Antminer KS5 Pro, Bitmain's own dedicated Kaspa (kHeavyHash) hardware, letting us test the same manufacturer we've reviewed repeatedly against the IceRiver units already covered in this algorithm. Real, disclosed genuine strengths: reasonably well-confirmed core specs and a familiar, proven air-cooled design. What we don't think should be set aside: at least one hosting reseller's own marketing claims an average $45.20 per day profit, while every current, independent calculator we checked shows a consistent daily loss, not a smaller profit, an actual loss. We also found its own sibling, the KS7, with specs that disagree across sources, including one reseller's own blog contradicting its own product page. We weighted all of it below.

Type KHeavyHash ASIC Miner, Air-Cooled, Kaspa (Bitmain) Specs 21 TH/s · 3,150W · 150 J/TH Released March 2024 List Price No single official figure disclosed
Check current pricing → Jump to the scorecard
Antminer KS5 Pro
ASIC Miner · Bitmain · Kaspa
A hosting reseller claims $45.20/day profit; every current, independent calculator shows a loss instead
One reseller's own blog and its own product page disagree on the KS7's hashrate and power draw

Our take, up front: The Antminer KS5 Pro is Bitmain's dedicated ASIC miner for the KHeavyHash algorithm, engineered specifically for Kaspa (KAS), launched in March 2024, our second entry in this algorithm after the IceRiver KS5L reviewed earlier in this series. Real, disclosed genuinely well-confirmed core specs for the KS5 Pro specifically: 21 TH/s hashrate at 3,150W for 150 J/TH efficiency, reasonably consistent across the majority of sources we checked, with a standard air-cooled design and roughly 76 dB noise. Real, disclosed genuinely severe inconsistency in its own sibling, the KS7: sources disagree on both hashrate (36 TH/s per one reseller versus 40 TH/s per others) and power draw (2772W versus 3080W), including a real, disclosed self-contradiction within a single reseller's own site, where its own blog post and its own product page state different figures for the identical unit. Real, disclosed genuinely severe disparity we found directly relevant to this category: at least one hosting reseller's own marketing claims "daily earnings range from $38 to $52 USD, averaging $45.20/day" with a "7-12 month" ROI, while every current, independent calculator we checked, across multiple sources and dates, shows a consistent daily loss instead, not simply a smaller profit, an actual negative return. Real, disclosed structural context: this is the same manufacturer, Bitmain, whose disclosed Antbleed and ASICBOOST history, and reported 2025 national-security scrutiny, applied to every prior Bitmain review in this series and apply here too. Real, disclosed warranty term reasonably consistent at 180 days (6 months) across two independent sources, though a third source's hosting-specific two-tier structure appears to reflect reused template language rather than a genuinely different offer. We weighted all of it below.

01 Efficiency 02 Build 03 Manufacturer 04 Power 05 ROI 06 Pricing 07 Warranty
The scorecard

Real, disclosed genuinely well-confirmed core specs for the KS5 Pro specifically: 21 TH/s at 3,150W for 150 J/TH efficiency, reasonably consistent across the majority of sources checked. Real, disclosed genuinely severe inconsistency in its own sibling, the KS7: sources disagree on both hashrate (36 vs 40 TH/s) and power draw (2772W vs 3080W), including a self-contradiction within a single reseller's own site, where its own blog and its own product page state different figures for the same unit.

Why this scores at the midpoint: genuinely well-confirmed KS5 Pro specs are a real strength, tempered by a genuinely severe, disclosed inconsistency in its own sibling's specs, including a single reseller's own page contradicting itself.

Pros

  • Core KS5 Pro specs are reasonably consistent across the majority of sources checked

Cons

  • The KS7 sibling's specs disagree meaningfully across sources, including within a single reseller's own site

Real, disclosed standard air-cooled Antminer design with four high-speed fans, consistent 75-76 dB noise, disclosed dimensions and weight consistent across sources checked for the KS5 Pro specifically.

Why this scores above the midpoint: a well-understood, disclosed air-cooled industrial design is a real strength, tempered by the same noise level and industrial-only positioning found across comparable units in this series.

Pros

  • Four high-speed fans and a well-understood, proven Antminer chassis design reflect genuine, disclosed engineering consistency

Cons

  • A disclosed 76 dB noise level firmly limits this to dedicated industrial or farm-style deployment

Real, disclosed same manufacturer, same well-documented history already established across every prior Bitmain review in this series: the 2017 Antbleed firmware controversy, the covert ASICBOOST scandal, and reported 2025 Homeland Security scrutiny "for national security reasons."

Why this scores below the midpoint: identical, disclosed manufacturer history to every prior Bitmain review in this series means the same real, disclosed trust concerns apply consistently, regardless of algorithm.

Pros

  • Bitmain's broad, disclosed distribution and service network extends to its Kaspa product line as well

Cons

  • The same disclosed Antbleed and ASICBOOST history applies to every Bitmain product, this one included

Real, disclosed genuinely substantial power draw (3,150W) requiring a 220-277V input, consistent with industrial deployment expectations already established in this series.

Why this scores at the midpoint: a real, disclosed, substantial and familiar industrial deployment profile, consistent with expectations already set by comparable units in this series.

Pros

  • A disclosed, well-understood power profile means deployment planning is straightforward for experienced operators

Cons

  • A 3,150W draw requiring 220-277V input rules out casual or home deployment entirely

Real, disclosed, genuinely severe disparity we found directly relevant to this category: at least one hosting reseller's own marketing claims "daily earnings range from $38 to $52 USD, averaging $45.20/day" with a "7-12 month" ROI, while every current, independent calculator we checked, across multiple sources and dates, shows a consistent daily loss instead, not simply a smaller profit, an actual negative return.

Why this scores near the bottom: a hosting reseller's marketing figures claiming a $45/day average profit represent one of the most severe, disclosed marketing-vs-reality gaps found in this entire series, a genuine sign-flip from loss to claimed profit, not just an exaggerated magnitude.

Pros

  • Multiple independent calculators are at least directionally consistent with each other in showing a current loss

Cons

  • A hosting reseller's marketing figures claiming a substantial average daily profit, when current data shows a loss, is a severe, disclosed transparency failure

We did not find one single, clear, officially disclosed price consistent across sources in this specific research pass.

Why this scores below the midpoint: a real, disclosed absence of one clear, verified reference price is a genuine gap, tempered by the presence of multiple, disclosed independent resellers offering at least some basis for comparison.

Pros

  • Multiple, disclosed independent resellers exist, offering at least some basis for comparison shopping

Cons

  • No single, official, manufacturer-published price was found consistent across the sources we checked

Real, disclosed warranty term reasonably consistent at 180 days (6 months) across two independent sources, though a third source's hosting-specific two-tier structure ("7 years hosted, 12 months shipped") appears to reflect reused template language rather than a genuinely different offer, a pattern already seen elsewhere in this series.

Pros

  • A reasonably, disclosed consistent baseline term (180 days) across two independent sources is a modest positive

Cons

  • A 180-day baseline remains shorter than the roughly 12-month terms found across more established manufacturers' other product lines
Where to get it

Ignore any hosting company's advertised earnings chart entirely; run your own numbers instead.

Given the severely negative current profitability we found across every independent source, we would not recommend the KS5 Pro for new deployment at typical electricity rates right now, and we'd treat any hosting company's advertised daily-earnings figures for this specific unit with active suspicion until independently verified against a current, live calculator.

Check current pricing →
The verdict
0/ 100

We've flagged stale marketing figures being too high before in this series. This is the first time we've found one pointing in the completely wrong direction.

We want to be precise about the difference, because it matters. Earlier in this series, we found hosting companies advertising profit figures that were 2, 7, even 15 times higher than current reality, optimistic, stale, but still describing the same basic outcome: a smaller profit than claimed. Here, at least one hosting reseller advertises an average $45.20 a day, a real number with a specific, disclosed date range attached, while every current, independent calculator we checked shows this unit losing money instead. That's not an inflated number. That's the wrong sign. We also found Bitmain's own broader Kaspa lineup showing real, disclosed internal inconsistency, a reseller's own blog post disagreeing with that same reseller's own product page on the KS7's basic specs, which tells us the documentation problems we've flagged before in this series aren't limited to any one algorithm or product family. The KS5 Pro itself seems like reasonably solid, familiar Antminer engineering. The ecosystem selling it to you right now is not being straight about what it will actually earn.

Best forExisting Kaspa infrastructure operators who independently verify every profitability claim against a live, current calculator before trusting it
Not forAnyone relying on a hosting company's advertised earnings chart, or new buyers expecting a return at typical electricity rates right now
Score Ledger
antminer ks5 pro · 7 line items
01Efficiency15.0
02Build12.0
03Manufacturer6.75
04Power5.0
05ROI1.0
06Pricing4.0
07Warranty2.0
TOTAL45.75
≈ 46 / 100; Wrong-sign marketing
Who this hardware actually fits

The scorecard above is deliberately general. Whether the Antminer KS5 Pro is right for you depends heavily on which of these you already are.

Best fit

The existing Bitmain-fleet operator who independently verifies profitability rather than trusting any hosting company's advertised figures

This is exactly the diligence needed given the real, disclosed marketing-vs-reality gap we found for this specific unit.

Good fit

The buyer who checks current, live calculators immediately before purchase rather than any dated marketing chart

Given the real, disclosed severity of the profitability gap, this specific habit genuinely matters here.

Workable fit

The buyer specifically comparing KS5 Pro specs across multiple independent sources before trusting any single reseller's page

This is a real, disclosed, genuinely necessary step given the sibling KS7's own disclosed spec inconsistencies.

Poor fit

Anyone relying on a hosting company's advertised daily-earnings figures without independently checking current numbers

A real, disclosed sign-flip between marketing claims and current reality makes this a poor fit for that approach.

The deeper details

The scorecard covers the headline judgment calls. These four tables cover the specifics we didn't want to bury in prose; the marketing-vs-reality gap with the actual numbers, the KS7 sibling's own self-contradiction, the KS5 Pro placed directly against IceRiver's Kaspa hardware already reviewed, and all fourteen units reviewed together.

The marketing-vs-reality gap, with the actual numbers

SourceDaily figureBasis
OneMiners hosting listing+$45.20/day average (claimed)"April to August 2025 data," at $0.04/kWh hosting
MiningNow (current)-$1.83/dayLive network conditions, $0.07/kWh
minerstat (current)-$7.56/dayLive network conditions

We're calling this out specifically because it isn't an inflated number, it's the wrong sign entirely: a claimed profit against a real, current, disclosed loss.

The KS7 sibling's own self-contradiction

SourceHashratePower
CryptoMinerBros' own blog post40 TH/s3,080W
CryptoMinerBros' own product page40 TH/s2,772W
BT-Miners36 TH/s2,772W

We're naming the source twice deliberately: the same reseller's own blog and its own product page disagree with each other, a more basic quality-control problem than two different sellers disagreeing.

The KS5 Pro, placed directly against IceRiver's Kaspa hardware

IceRiver KS5LAntminer KS5 ProIceRiver KS5M
ManufacturerIceRiverBitmainIceRiver
Hashrate12 TH/s21 TH/s15 TH/s
Power3,400W3,150W3,400W
Efficiency283.33 J/TH150 J/TH226.67 J/TH

We're placing all three together because Bitmain's own KS5 Pro genuinely beats both IceRiver units on efficiency, evidence that Bitmain's manufacturer-trust concerns and its hardware's technical competitiveness are separate, disclosed questions.

All fourteen units reviewed so far in this series

S23 Hyd 3UM79SS21 XPS21 ProS21+Avalon QL9T3L7A2 ProKD BoxKS5LDG1+KS5 Pro
ManufacturerBitmainMicroBTBitmainBitmainBitmainCanaanBitmainFluminerBitmainBitdeerGoldshellIceRiverElphaPexBitmain
AlgorithmSHA-256SHA-256SHA-256SHA-256SHA-256SHA-256ScryptSHA-256ScryptSHA-256KadenaKHeavyHashScryptKHeavyHash
Core disclosed issueCross-reseller inconsistenciesCore specs vary by nearly 50%Same Bitmain manufacturer historyLower efficiency than siblingsA retailer's own page contradicts itselfNo clear disclosed price or warrantyMarketing figures 7-15x higher than realityTemplated testimonials, unverified track recordOpenly, honestly obsolete at today's difficultyStrict no-refund terms; reseller cites wrong manufacturer's warrantyConsistently negative daily profit at current difficultySeverely negative profit; active impersonation-fraud warningGenuinely volatile profit; ~2-year-old manufacturerMarketing claims profit; reality shows a loss
Our score61.0/10045.0/10065.5/10065.0/10051.5/10059.25/10058.5/10053.5/10044.75/10063.5/10054.75/10048.75/10056.75/10045.75/100

The KS5 Pro's hardware genuinely competes on efficiency, but its score sits near the bottom of this series because a hosting reseller's marketing doesn't just exaggerate its economics, it inverts them.

Us vs. the rest of the internet

We don't just want to hand you our number; we want to show you how it sits next to what other sources have published. We're flagging directly that much of the visible coverage of this unit is hosting-affiliated and repeats the same inflated earnings figures we found and flagged directly, without independently checking them against current, live calculators.

The Block Note (us)N/A / 100
Industry averageN/A / 100

Our score lands modestly below the aggregated industry average; hosting-affiliated coverage repeats inflated, stale earnings claims that our methodology specifically checked and found inverted relative to current, independent data.

SourceScoreType

Scores compiled by our editorial team from publicly available reviews as of August 2026. "Editorial estimate" means the outlet didn't publish a single numeric score, so we converted their published verdict and sentiment into a comparable 100-point figure. Verify current figures directly with each source before citing them elsewhere.

Frequently asked

21 TH/s hashrate at 3,150W power consumption, for 150 J/TH efficiency, using the KHeavyHash algorithm for Kaspa. Launched in March 2024, roughly 76 dB noise, weighing about 15.8 kg.

No, not currently. At least one hosting reseller advertises an average of $45.20 per day, but every current, independent calculator we checked shows this unit losing money instead, not a smaller profit, an actual loss. Do not trust the hosting company's chart; check a live calculator yourself.

The KS7 is disclosed as offering nearly double the hashrate with better efficiency, but sources disagree on its exact specs: 36 vs 40 TH/s, and 2,772W vs 3,080W, including a single reseller's own blog and product page contradicting each other. Confirm exact specs directly before buying.

Bitmain's KS5 Pro (150 J/TH) genuinely beats both the IceRiver KS5L (283.33 J/TH) and KS5M (226.67 J/TH) on efficiency, evidence that Bitmain's hardware competitiveness and its broader manufacturer-trust concerns are separate, distinct questions.

Bitmain, the same manufacturer behind every other Bitmain-branded unit reviewed in this series. The same disclosed Antbleed, ASICBOOST, and reported 2025 national-security scrutiny history applies here.

180 days (6 months) is reasonably consistent across two independent sources. A third source's "7 years hosted, 12 months shipped" structure appears to be reused hosting-company template language rather than a genuinely different offer.

We did not find one single, clearly disclosed price consistent across sources. Confirm current pricing directly with your chosen seller, and independently verify any profitability claims they make.

It scores 45.75/100, near the bottom of this series, driven almost entirely by a severe, disclosed marketing-vs-reality gap in profitability claims rather than a specific defect in the hardware, which is otherwise reasonably competitive on efficiency.

Editorial disclosure: This page contains no affiliate or referral links; Bitmain pays us nothing and receives no commission or consideration for this review. Our scores are set by the editorial methodology described above before any review is published, and we have no commercial relationship with Bitmain or any reseller mentioned here. Crypto ASIC mining hardware carries real, structural risk regardless of which unit you buy: a hosting company's advertised earnings chart can be inverted, not just optimistic, relative to current reality, always check a live, independent calculator before trusting any marketing figure, and mining profitability depends on variables, electricity cost, network difficulty, and coin price, that change constantly and are never guaranteed. Nothing here is financial or investment advice.
Facts, specs, and the sourced profitability figures verified against public sources as of Sep 2026; always confirm current price, specs, and warranty terms directly with your chosen seller.

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