FUTURES Control Board (for S21 Imm.,S21 XP Imm.)

Official Bitmain Control Board for S21 Imm. and S21 XP Imm. Ensures stable performance in immersion-cooled setups.

Function
S21 lmm./S21 XP Imm. Immersion-cooling Miner
Specifications
1G
Rating ★★★★☆ 4.4 8 reviews
Price
30 $/T
30 $/Unit
Shipping Date
Shipping in 20 working days after fully paid
Payment Method
S21 lmm. S21 XP Imm.
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Purchasing Guidelines

NOTES

1. One account can purchase a maximum of 500 units.

2. The shipping costs, cutsoms charges, and taxes(if any) are not included in the retail price shown above.

3. After an order has been submitted, a request to cancel the order, refund any part of the ordered amount or change the ordered item(s) to different item(s) or different batch(es) will not be entertained by BITMAIN.

4. The pictures shown are for reference only; the final shipment version shall prevail.

SHIPPING DETAILS

1. The products are made in China.

2. Shipments will be scheduled on a first-paid-first-ship basis for orders on which BITMAIN has received full payment.

3. You are responsible for any customs delays or returned shipments due to a lack of proper documentation. It's highly recommended to be aware of local customs clearance policies and to prepare all customs documentation ahead of time to avoid any customs clearance delays or unexpected costs.

Warranty

CLICK for >> Parts & Materials Ordering Notes and Warranty Information

Please read BITMAIN’s Terms & Conditions for a complete list of conditions and terms that apply to all orders placed on bitmain.com.

Customer Reviews

4.4 ★★★★☆ 8 reviews
R
Radu Dumitru
Apr 4, 2026
★★★★☆
Good value for money
After careful consideration, Good value for the money. Performance and build quality both justify the asking price.
O
Omar Al-Rashid
Mar 16, 2026
★★★★☆
Well packaged
Good protective packaging with adequate padding throughout. Item arrived without any damage.
A
Anna Novikova
Jan 31, 2026
★★★★☆
Reliable functionality
Functions reliably in everyday use. Does what it claims with no major issues to report. No complaints at all.
B
Benedikt Zimmermann
Jan 4, 2026
★★★★☆
Performs well
Performs well in real-world conditions. Specifications on the listing are accurate. Definitely satisfied.
O
Oleksiy Bondarenko
Dec 30, 2025
★★★★☆
Great build quality
For what it is worth, Build quality is noticeably better than comparable options I have seen. Well put together. Would buy again.

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