↑
Back to Top
What are the key benefits and advantages of Microsoft Server 2019 RDS Device CAL?
Device Rights – License one device for RDS session access.
Shared Stations – Many users share one licensed workstation safely.
Shift Savings – Lower cost when devices outnumber users.
Remote Apps – Use published apps from licensed devices easily.
Central Hosting – Keep sessions on servers for simpler admin.
Compliance Ease – Count devices instead of tracking every user.
Remote session right – Lets a device open a Remote Desktop session.
Per-device model – Licenses the machine, not the person.
Shared device use – Any user may connect from that device.
License server tracking – Issued and counted by RD Licensing.
Backward compatible – Also reaches 2016 session hosts.
Core Capacity – Cannot connect to 2022 or newer session hosts.
An RDS Device CAL grants one device the right to start Remote Desktop sessions on a Windows Server 2019 RD Session Host. It is licensed per machine, so any user sitting at that device is covered.
Shift friendly – One CAL covers all users per device.
Predictable counting – Tied to fixed, known endpoints.
Workgroup capable – Tracks even without Active Directory.
Lifts session cap – Removes the two-connection administrative limit.
Reusable pool – Up to 20% can be revoked.
Edition neutral – Works on Standard and Datacenter alike.
It gives a physical device the legal right to run Remote Desktop Services sessions on a Windows Server 2019 RD Session Host. A Windows Server installation only permits two administrative Remote Desktop connections on its own; once you install the RD Session Host role, every additional connecting device needs an RDS CAL. The CAL is installed on an activated RD Licensing server, which issues a temporary license on a device's first connection and a permanent one on the second. This model is built for shared hardware, where several staff use the same terminals across shifts.
A Device CAL licenses one machine for unlimited users, while a User CAL licenses one person for unlimited devices. Choose Device CALs when more people than devices connect, such as a call center where three shift workers share two terminals; you would buy two Device CALs instead of three User CALs. Device CALs are physically assigned to the endpoint and can be tracked in a workgroup, whereas User CALs are assigned in Active Directory and are not enforced by the license server. You can mix both types in one deployment, but using a single model keeps auditing far simpler.
Yes, in most setups an RDS CAL does not replace the base Windows Server CAL; the two cover different things. The standard Windows Server CAL authorizes basic network access such as file, print, and authentication services, while the RDS CAL specifically authorizes the Remote Desktop session on top of that. So a device connecting to apps published from a 2019 RD Session Host typically needs both a Windows Server Device CAL and an RDS Device CAL. Skipping the base CAL leaves the deployment out of compliance even if remote sessions appear to work.
A 2019 RDS CAL works with Windows Server 2019 and 2016 session hosts, but it cannot connect to a 2022 or newer RD Session Host. RDS CALs are backward compatible but never forward compatible, so the CAL version must match or exceed the server version it serves. If you plan to move session hosts to Windows Server 2022 later, a 2019 CAL will not carry over and you would need to buy 2022 CALs. The CAL itself is not edition-specific, so the same 2019 Device CAL is valid against Standard, Datacenter, or Essentials session hosts.
You need one RDS Device CAL for each distinct device that opens a Remote Desktop session, regardless of how many people use that device. For example, 20 thin clients used by 60 rotating staff require 20 Device CALs, not 60. The license server enforces this count under the Per Device model and will not over-allocate, unlike the Per User model where tracking relies on the administrator. Count the actual connecting endpoints rather than headcount before buying, since the device total is what determines compliance.
Confirm that your RD Session Host runs Windows Server 2019 or 2016, because a 2019 CAL cannot serve a 2022 or later host. Verify whether your environment has more devices than users; if people roam across many devices, User CALs are usually the cheaper and cleaner fit. Also confirm you have an activated RD Licensing server, since the CAL must be installed there to be issued past the 120-day grace period. Finally, plan for a separate Windows Server CAL, which the RDS CAL does not include.
Yes. After a 120-day grace period, connections need a valid RDS CAL issued by an activated RD Licensing server. The Device CAL is installed on that server, which then issues a temporary license on first connect and a permanent one on the second connect.
Partly. Under the Per Device model, the license server lets you revoke up to 20% of issued Device CALs to reclaim them for replacement hardware. This helps when a device is retired, but it is not a way to cover more devices than CALs you own.
Yes. The Per Device model can issue and track licenses in a workgroup with no domain, which is one practical reason to pick Device over User CALs in small or non-domain setups. The Per User model cannot be reliably tracked in a workgroup.
| Processor | 1.4 GHz 64-bit processor. Compatible with x64 instruction set. Supports NX and DEP. Supports CMPXCHG16b, LAHF SAHF, PrefetchW. Supports Second Level Address Translation EPT or NPT. Supports SSE4.2 Streaming SIMD Extensions 4.2. Supports POPCNT instruction. |
| Memory RAM | 2 GB for Server Core. 2 GB for Server with Desktop Experience, 4 GB recommended. ECC Error Correcting Code type or similar technology recommended for physical host deployments. |
| Hard Disk | 32 GB of space for the system partition minimum. |
| Display | Monitor capable of Super VGA 1024 x 768 or higher resolution. |
| Graphics | Integrated or dedicated graphics capable of Super VGA 1024 x 768 or higher resolution. |
| Note | RDS Device CAL is a license, not a software product, assigned per device for access to Remote Desktop Services. The RDS CAL version must be compatible with the Windows Server version the device connects to, newer RDS CALs can access earlier Windows Server versions but older RDS CALs cannot access newer Windows Server versions. Install Windows Server 2019 RDS CALs on a Remote Desktop Licensing server running Windows Server 2019 or earlier, and the license server can only process CALs from the same or previous Windows Server versions. |
keys.express and keys.discount is a web platforms for new and used product keys. The product keys for Windows and other software available in the shop of keys.express and keys.discount are cheap, safe, legal and with activation guarantee.
Here you can find some general information about used software, an overview of the most important legal information as well as answers to frequently asked questions from our customers ("FAQ“)
Used software is available for sale in the European Union as well as in Switzerland according to current jurisdiction provided that the necessary conditions are met. The necessary conditions are as follows:
keys.express and keys.discount ensure that the above mentioned requirements are met and that a legal use of the software is guaranteed. The requirements of the European legislation are also met in Switzerland.
You can find further information on:
There is a lot of legal information about the topic of used software. We are more than happy to answer any questions you may have. You can contact us at any time via welcome(at)keys.express. In the meantime, you can also find a short overview of the most important legal information regarding used software here:
For distance contracts concluded by telephone, on the Internet or when ordering from a catalogue, EU law provides for the possibility for consumers to withdraw from the contract for a certain period of time ("right of withdrawal"). A consumer in this sense is any natural person who concludes a legal transaction for purposes that are predominantly neither commercial nor self-employed. In Switzerland we usually speak of consumers.
Consumers have the right to cancel the contract within fourteen calendar days without giving reasons. The revocation period begins on the day the contract is concluded.
In order to exercise your right of withdrawal from keys.express or keys.discount, you must inform us by means of a clear statement (e.g. a letter, fax or e-mail sent by post) of your decision to withdraw from this contract. For this purpose, you can contact us using the following information:
Keys Distribution Ltd
Suite 2, 215 Main Street
Gibraltar Heights, Gibraltar
Phone +423 7989130
Email: welcome@keys.discount
keys.express and keys.discount also provides a template revocation form. In order to comply with the revocation period, it is sufficient to send the notification of the exercise of the right of revocation to Keys Distribution Ltd before the end of the revocation period.
If you revoke this contract, we must reimburse you for all payments which we have received from you for the corresponding order, including delivery costs (with the exception of additional costs which result from the fact that you have chosen a different type of delivery than the cheapest standard delivery offered by us), immediately and at the latest within fourteen calendar days from the day on which we receive notification of your revocation of this contract. For this repayment we will usually use the same means of payment that you used for the original transaction, unless expressly agreed otherwise with you. In no case will you be charged for this refund.