[Elecraft] Which of these would make the best power supply for the K3(S)

[Doug Hensley]

See item # 220648795286.  I have two and they work well.  The seller stands behind their 2 year warranty and usually just ships a new replacement.  They hold up well.
36 Amp 12 Volt 13.8V DC Regulated Power Supply 12V Real USA MegaWatt®

 I have no vested interest in these other than as a satisfied customer.  China is introducing similar units for half the price but I will stay with MegaWatt until I know better.
Cheers,
Doug W5JV