About the Product

The LM317MDCYR L4 Adjustable Voltage Regulator is a versatile and reliable solution for Antminer S21 and T21 hash board repair. This regulator provides precise output voltage adjustment, ensuring stable performance and efficient power management in demanding crypto mining environments. Its robust design makes it suitable for long-term use in high-power ASIC miner applications.

✅ Key Features:

• Adjustable 3-terminal positive voltage regulator

• Wide output voltage range with excellent line and load regulation

• Reliable solution for Antminer S21 / T21 hash board repairs

• High durability and thermal protection for continuous operation