Which Antminer S21+ Hydro Models Are Available Today?
Not every mining operation needs the same hashrate. A home miner with a small setup has different needs than a 500-unit farm. This is why Bitmain released the S21+ Hydro in multiple configurations. Buyers can choose the model that fits their power budget, space, and ROI target.
Our Hong Kong warehouse currently stocks four Antminer S21+ Hydro models: 319T, 338T, 358T, and 395T. Each model runs the SHA-256 algorithm on hydro cooling. The hashrate and power draw vary by model, giving buyers flexibility across different deployment scales.
Available S21+ Hydro Models at a Glance
| Model | Hashrate | Power | Efficiency | Best Fit |
|---|---|---|---|---|
| S21+ Hydro 319T | 319 TH/s | 4785W | 15.0 J/TH | Small farms, first-time hydro buyers |
| S21+ Hydro 338T | 338 TH/s | 5070W | 15.0 J/TH | Mid-size farms, balanced setup |
| S21+ Hydro 358T | 358 TH/s | 5370W | 15.0 J/TH | Large farms, high-density deployment |
| S21+ Hydro 395T | 395 TH/s | ~6000W | ~15.2 J/TH | Maximum hashrate per unit |
Common Specifications Across All Models
| Specification | Detail |
|---|---|
| Manufacturer | Bitmain |
| Algorithm | SHA-256 |
| Supported Coin | Bitcoin (BTC) |
| Cooling System | Hydro (Water Cooling) |
| Noise Level | 50 dB |
| Voltage Range | 380-415V |
| Interface | Ethernet |
| Operating Temperature | 5 – 45 °C (model-dependent, some rated 20 – 50 °C) |
| Warranty | 365 Days |
| Release Date | July 2024 onwards (varies by model) |
How to Choose the Right Model
| Buyer Type | Recommended Model | Reason |
|---|---|---|
| Home miner testing hydro | 319T | Lower power draw, easier site preparation |
| Small farm expanding | 338T | Good balance of hashrate and power |
| Mid-to-large farm | 358T | Higher output per unit |
| Maximum density farm | 395T | Best for operations wanting top hashrate per footprint |
The S21+ Hydro series all use hydro cooling. This means buyers need a working coolant system before the units arrive. We recommend confirming your coolant setup before ordering. Pure water, deionized water, or antifreeze mixes are all supported depending on the model. The key parameters to check are coolant flow rate (8.0~10.0 L/min) and pressure (≤3.5 bar).
What Buyers Should Confirm Before Ordering
| Item to Confirm | Why It Matters |
|---|---|
| Exact model (319T/338T/358T/395T) | Avoids wrong unit shipment |
| Quantity needed | Helps us confirm available stock |
| Coolant system readiness | Hydro miners need working water cooling |
| Power infrastructure (380-415V) | Site must match voltage requirements |
| Destination country | Affects shipping method and timeline |
At Miner Source, we discuss these details before payment. This makes the buying process cleaner for both sides.
Why Does Real Warehouse Inventory Matter?
“In stock” is a phrase that gets misused a lot in the ASIC miner market. Some suppliers list inventory they do not hold. They collect payments first, then try to source units from the factory or other sellers. If supply tightens, the buyer waits. Sometimes for weeks. Sometimes the order gets canceled altogether.
Real warehouse inventory means the Antminer S21+ Hydro units are physically sitting in our Hong Kong warehouse right now. We own the stock. We can show photos or videos with date proof. We can confirm the exact quantity available. We ship from real inventory, not from a promise.
Real Stock vs Other Supply Types
| Supply Type | What It Means | Buyer Risk |
|---|---|---|
| Real Hong Kong stock | Units are in our warehouse now | Low waiting time, confirmed availability |
| Factory allocation | Units need release from Bitmain | Delivery date can shift |
| Pre-order | Units not yet produced | High waiting risk |
| Unclear stock | Supplier cannot show proof | High trust risk |
Many buyers have told us the same story. They ordered hydro miners from a supplier who promised “stock ready.” After payment, the supplier admitted the units were still waiting for factory allocation. The buyer lost weeks of mining time.
We built our Hong Kong warehouse to remove this problem. Hong Kong is a global logistics hub. Stock held here can move fast to almost any market. We choose to hold real inventory because we know professional buyers value certainty over empty promises.
How Buyers Can Verify Our Stock
| Proof Type | What We Provide |
|---|---|
| Warehouse photo | Shows real S21+ Hydro boxes with current date |
| Warehouse video | Shows inventory condition and quantity |
| Model label check | Confirms exact model and hashrate |
| Packing record | Shows preparation process before shipment |
You can also visit our SHIP VIDEO page to see real shipping records from Miner Source.
How Fast Can We Ship Antminer S21+ Hydro Worldwide?
Speed matters in Bitcoin mining. When network difficulty is rising, every extra day of waiting eats into your future earnings. A miner that arrives in 5 days versus 30 days can mean a meaningful difference in total BTC mined over the machine’s lifecycle.
Miner Source ships Antminer S21+ Hydro units from our Hong Kong warehouse within 48 hours of payment confirmation. Global air freight typically delivers to North America and Europe in 3-5 business days. The Middle East takes 2-4 business days. DDP shipping options handle customs clearance for you.
Our Standard Shipping Flow
| Step | What We Do | Why It Matters |
|---|---|---|
| Order confirmation | We lock model, quantity, and destination | No shipment errors |
| Stock check | We confirm units are available on the shelf | Protects your timeline |
| Packing preparation | We secure units for international transport | Reduces transit damage risk |
| Logistics booking | We arrange air freight or express | Faster than sea freight |
| Tracking update | We share tracking number and status | You know where your units are |
Why Hong Kong Is a Strong Export Location
Hong Kong has several advantages for ASIC miner export. Customs clearance is fast. Major air freight routes connect Hong Kong to North America, Europe, and the Middle East directly. Freight forwarders here handle mining hardware shipments daily. This means fewer delays and fewer paperwork problems compared to less established export points.
Why Fast Shipping Matters for Hydro Miner Buyers
| Buyer Goal | Why Speed Matters |
|---|---|
| Deploy new farm capacity | Earlier deployment means earlier BTC earnings |
| Replace older air-cooled units | Faster swap reduces dual-running power costs |
| Catch favorable difficulty windows | Delays can mean deploying into higher difficulty |
| Meet investor timelines | Farm investors expect fast execution |
We do not claim identical delivery times for every country. Customs and local logistics vary. But real Hong Kong stock gives every order a faster starting point than factory waitlists or pre-orders.
For more details, you can review our Shipping & Payment Policies page.
Why Choose the Antminer S21+ Hydro for Bitcoin Mining?
Bitcoin mining is a long-term game. The machines you buy today need to stay profitable for years. Choosing the wrong miner means watching your margins shrink as difficulty climbs and older hardware falls behind.
The Antminer S21+ Hydro series offers 15.0 J/TH efficiency across multiple hashrate options. Hydro cooling keeps temperatures stable. Stable temperatures mean fewer hardware failures and longer machine life. For large farms, hydro cooling also reduces the noise and heat management challenges that come with air-cooled units.
Hydro Cooling vs Air Cooling
| Factor | Air-Cooled Miners | Hydro-Cooled Miners (S21+ Hydro) |
|---|---|---|
| Heat management | Fans push hot air out | Coolant carries heat away |
| Noise level | Often 75+ dB | Around 50 dB |
| Temperature stability | Can fluctuate with ambient temp | More stable with proper coolant flow |
| Space efficiency | Need airflow clearance between units | Can be packed denser |
| Maintenance | Fan replacements over time | Coolant system upkeep required |
Hydro cooling is not the right choice for every buyer. It requires a coolant circulation system. The site must handle the plumbing and coolant maintenance. But for farms that already run hydro infrastructure or are building new facilities, the S21+ Hydro series offers efficiency that air-cooled miners cannot match at this hashrate level.
Who Should Buy the S21+ Hydro?
| Buyer Profile | Why S21+ Hydro Fits |
|---|---|
| Farms with existing hydro setup | Drop-in upgrade for older hydro units |
| New farm builds | Plan the coolant system from day one |
| Hot climate operations | Liquid cooling handles high ambient temps better |
| Large-scale investors | 365-day warranty and proven Bitmain reliability |
Things to Check Before Deploying Hydro Miners
| Requirement | Detail |
|---|---|
| Coolant type | Antifreeze, pure water, or deionized water (model-dependent) |
| Coolant flow rate | 8.0~10.0 L/min |
| Coolant pressure | ≤3.5 bar |
| pH range | 6.5~9.5 depending on coolant type |
| Power supply | 380-415V three-phase |
| Operating temp range | 5-45°C or 20-50°C (check specific model) |
Hydro miners need more site preparation than plug-and-play air-cooled units. We tell our clients to have their coolant system tested and ready before the units arrive. This avoids the frustration of receiving miners that cannot be powered on immediately.
Looking for Antminer S21+ Hydro or Other Bitcoin Miners?
The S21+ Hydro series is one of the strongest Bitcoin mining options available today. But every operation has different needs. Some buyers want air-cooled Antminers. Some want WhatsMiner units. Some need mixed batches for testing different efficiency levels.
If you need Antminer S21+ Hydro or other Bitcoin ASIC miners, Miner Source can check current Hong Kong and Shenzhen stock, confirm available models and quantities, and provide a fresh quote based on your order size and shipping destination.
What We Can Supply
| Product Type | Examples |
|---|---|
| Hydro Bitcoin miners | Antminer S21+ Hydro (319T/338T/358T/395T) |
| Air-cooled Antminers | S21 series, S19 series, and other models |
| WhatsMiner units | Various models for different budgets |
| Avalon miners | Alternative Bitcoin mining hardware |
| Accessories | Power cables, PSUs, control boards, coolant system parts |
| Logistics support | Global shipping from Hong Kong and Shenzhen warehouses |
Miner Source is not just a seller. We work as a supply partner for mining buyers. We have warehouse operations in both Hong Kong and Shenzhen. We serve buyers in North America, Europe, Canada, Dubai, the UAE, and other active mining regions.
When You Contact Us, Please Share These Details
| Detail | Example |
|---|---|
| Model needed | S21+ Hydro 358T or other model |
| Quantity | 10 units, 50 units, 100+ units |
| Destination country | USA, Canada, UAE, Germany, etc. |
| Shipping preference | Air freight, express, DDP |
| Timeline | Urgent or planned purchase |
This helps us reply faster and give a more accurate quote. Miner prices and stock levels change quickly. We always recommend checking the latest price and availability before placing an order.
You can reach us through:
- Email: info@minersource.shop
- Website: www.minersource.shop
- Contact Page: Contact
Conclusion
Antminer S21+ Hydro miners in Hong Kong stock give Bitcoin mining buyers a practical, fast option for deploying new hashrate. With four models available — 319T, 338T, 358T, and 395T — buyers can choose the right balance of hashrate and power for their operation.
At Miner Source, we focus on real stock, fast global shipping, clear order communication, and professional packaging. If you need Antminer S21+ Hydro or other Bitcoin ASIC miners for wholesale purchase, contact us anytime for current stock, pricing, and shipping options.
MinerSource.shop — Real Stock. Fast Shipping. Bitcoin Miner Wholesale Support.
