Windows Server 2016 50 User CALパックは、組織内の50名の指定ユーザーがWindows Server 2016のサービスに合法的にアクセスするためのクライアントアクセスライセンスを提供します。User CALは特定の個人に割り当てられ、そのユーザーは無制限のデバイス（デスクトップ、ノートパソコン、タブレット、スマートフォン）から任意の数のWindows Serverにアクセスできます。1つのライセンスですべてのデバイスをカバーします。
User CALは、従業員が複数のデバイスからサーバーにアクセスする場合に最適な選択肢です。オフィスのワークステーション、出張先のノートパソコン、メール用のスマートフォンなど、1人が複数のデバイスを使用する現代の作業環境では、User CALがすべてのアクセスポイントをカバーし、デバイスごとに個別のライセンスは不要です。そのため、モバイルワークやフレキシブルな勤務形態の組織では、Device CALよりもコスト効率が高くなります。
Windows Server CALは、Windows Serverのサービスに直接または間接的にアクセスするすべてのユーザーまたはデバイスに必要です。これには、Active Directoryへの認証、共有フォルダやプリンタへのアクセス、リモートデスクトップ接続（RDSには別途RDS CALが必要）、DNSおよびDHCPサービスの利用、IISでホストされるWebアプリケーションへのアクセスが含まれます。適切なCALがない場合、組織はMicrosoftのライセンス条件に準拠していないことになります。
Windows Server 2016 User CALは下位互換性があり、古いサーバーバージョン（2012 R2、2012、2008 R2）へのアクセス権も付与します。ただし、新しいバージョンへのアクセスは提供されません。Windows Server 2019または2022にアクセスするには、それぞれのバージョンに対応したCALが必要です。
What are the system requirements for Windows Server 2016 - 50 User CAL?
Windows Server 2016 - 50 User CAL requires Windows 10/11, at least 4 GB of RAM (though 8 GB is recommended), and 2 GB of free storage space. An internet connection is needed for download and activation.
What kind of license do I get with Windows Server 2016 - 50 User CAL from Lizensa?
Your Windows Server 2016 - 50 User CAL license is a perpetual (lifetime) license — buy once and use forever on one device. This means no recurring fees or subscriptions. You'll also receive free updates and security patches from Lizensa.
What's included with my Windows Server 2016 - 50 User CAL purchase from Lizensa?
Your purchase includes a genuine Windows Server 2016 - 50 User CAL license key, a download link from the official Microsoft website, step-by-step activation instructions, a VAT invoice (EU), and lifetime access to the key in your Lizensa account. All keys are authentic and backed by our 14-day money-back guarantee.
Why is Windows Server 2016 - 50 User CAL so much cheaper on Lizensa?
At just €22.08, our Windows Server 2016 - 50 User CAL license is up to 86% cheaper than retail because we buy in wholesale volume from European distribution channels and pass the savings directly to you. You get the exact same genuine product — just without the retail markup.
How do I install and activate Windows Server 2016 - 50 User CAL from Lizensa?
After purchase, you'll receive a download link and license key by email. Download the software from the official Microsoft website, enter your key during installation or in the activation menu, and follow the guided setup. Full instructions are included with your purchase.
Is Windows Server 2016 - 50 User CAL compatible with my operating system?
Windows Server 2016 - 50 User CAL is compatible with current versions of Windows and macOS. Please check the system requirements section on this page before purchasing. Most modern PCs and Macs meet or exceed the minimum requirements.
How quickly will I receive my license key from Lizensa?
Your license key is delivered instantly via email after payment is confirmed — typically within 30 seconds. You'll also find it in your Lizensa account dashboard under My Library.
Are Lizensa license keys genuine and legal in the EU?
Yes. Our licenses are sourced through European distribution channels and come with a VAT invoice. The EU Court of Justice (UsedSoft v Oracle, C-128/11) has confirmed that software license resale is legal within the European Economic Area.
What is Lizensa's refund policy?
We offer a 14-day money-back guarantee on all licenses. If you encounter any issues with activation or the product doesn't meet your needs, contact our support team for a full refund — no questions asked.
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After purchase, you'll receive an email with your license key and step-by-step activation instructions. Simply enter the key during installation or in your system's activation settings. Most activations take under 2 minutes.
Do I get support with my Lizensa purchase?
Absolutely. Our multilingual support team responds within one hour during business hours. We can assist with installation, activation troubleshooting, and license questions via email in English, German, French, Spanish, Italian, Dutch, and Polish.
