Virtual Machines features and limits

_{Updated May 8, 2026}

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Features

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Compute

• Flexible sizing — General Purpose and CPU-Optimized plan families across CPU, RAM, and base disk
• On-demand resize — change CPU and RAM by switching plans (VM must be stopped); the difference settles to your account balance
• Disk resize (one-way) — grow the OS disk without rebuilding (VM must be stopped)
• No CPU throttling — Raff never throttles your VM; sustain 100% CPU as long as your usage is legitimate
• Custom images — save a VM’s OS disk as a reusable image and create new VMs from it

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OS templates

• Linux — Ubuntu, Debian, Fedora, CentOS, AlmaLinux, Rocky Linux, Alpine Linux, openSUSE
• BSD — FreeBSD
• Windows — Windows Server Standard (2019, 2022, 2025) and Datacenter (2022, 2025)
• Marketplace — pre-built application images
• Custom — any image you’ve saved from one of your VMs

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Networking

• Public IPv4 — every VM gets a public IPv4 address by default
• IPv6 support — optional dual-stack networking
• Optional VPC membership — opt in by picking a VPC at create time, or join one later. A VM doesn’t need a VPC to be useful
• Shared VPCs — multiple VMs in the same region can share one VPC for private peer-to-peer traffic
• Reserved Public IPs — keep a stable public address across VM rebuilds (separate product)
• Unlimited bandwidth — outbound traffic is unmetered and included on every plan; no per-GB egress charge

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Storage

• Base disk — SSD, included with the plan
• Block storage volumes — attach additional storage that can outlive the VM
• Snapshots — point-in-time copies of an OS disk or volume; per-GB-hour pricing
• Backups — automated Daily or Weekly schedules with configurable retention; storage draws from the shared free pool (see Pricing)
• Multiple backup schedules per VM — run Daily and Weekly side by side

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Security and access

• SSH key authentication — upload keys at creation, reuse on reinstall
• Password authentication — alternative; emailed to the account address on reset
• Security groups — stateful firewall rule sets attached to VM network interfaces
• Reset password — generate a new password and have it emailed to your account
• Browser SSH terminal — in-app SSH for Linux VMs without a local client
• VNC console fallback — graphical console for Windows VMs and recovery scenarios
• Direct SSH and RDP — connect from any client (ssh, PuTTY, Windows App, FreeRDP, Remmina, …)

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Lifecycle and recovery

• Reinstall (Change OS) — switch to a new OS template; preserves IP and attached volumes, deletes snapshots and backups
• Factory reset — fresh OS install on the same template; preserves snapshots, backups, and volumes
• Hard reboot — force-restart for unresponsive VMs
• Bulk operations — select multiple VMs in the list and stop or delete them in one action
• Custom images for backup-based recovery — Raff support can build a new VM from any retained backup if the original is destroyed

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Organization

• Tags — free-form labels with optional priority (1-9), account-wide
• Group by Tag — list view grouped by tag, ordered by priority then name (up to 2 levels of sub-grouping)
• My Notes / Team Notes — per-VM private and team-visible notes
• Hostnames — per-VM display name editable any time

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Observability

• Performance graphs — CPU, Memory (Used / Free), Network Traffic (RX / TX per interface), Disk Throughput, Total Outbound Data Transfer
• Time ranges — 30m / 1h / 2h / 6h / 24h / 7d / 1m / All
• VM Information side panel — live summary of pricing, status, credentials, resources, network, storage, and backup/snapshot counts

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Billing

• Subscription by default — pay in advance from your account balance for the term (Monthly / Yearly / 2-Year)
• Term discounts — Yearly and 2-Year save 17% vs Monthly
• Credit on delete or downsize — unused days and hours go back to your account balance (not your card)
• Pay-as-you-go on request — available for enterprise and SMB customers
• Stopped VMs are billed — passive VMs retain reservations and continue under their subscription term
• 14-day money-back guarantee — on subscription purchases via the dashboard checkout
• Multiple payment methods — Google Pay, Visa, Mastercard, American Express, Diners Club; cards are saved for future renewals
• Account balance applied first — checkout deducts from your balance before charging the card

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Account limits

See Account limits for how limit increases work, including urgent requests via support.

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Per-VM limits

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Connection details

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API endpoints

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See also