madRooster: $5/month/512MB RAM/10GB SSD space/500GB bandwidth/KVM/Phoenix

madRooster, an American hosting provider, was founded in 2004. It provides various hosting services, has its own data center, and is mainly located in Phoenix. Here is its VPS:

30-day money back guarantee IPv6 support

Base
vCPU: 1 (3.4GHz)
Memory: 512 MB
Space: 10 GB SSD (RAID 10)
Traffic: 500 GB/month (1Gbps port)
IPv4: 1
$4.95/month

Small Developer
vCPU: 1 (3.4GHz)
Memory: 1 GB
Space: 20 GB SSD (RAID 10)
Traffic: 1 TB/month (1Gbps port)
IPv4: 1
$9.95/month

Developer
vCPU: 2 (3.4GHz)
Memory: 2 GB
Space: 40 GB SSD (RAID 10)
Traffic: 2 TB/month (1Gbps port)
IPv4: 1
$19.95/month

Purchase and details: https://www.madrooster.com/virtual-private-servers

Dedicated servers: https://www.madrooster.com/dedicated-servers