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RAX XS4-21S3

RAX XS4-21S3

The RAX XS4-21S3 rackmount server is a 1U system designed to support a variety of workloads. This server provides general purpose performance to support everyday business use cases, or as a part of a larger HPC, cloud, or data center deployment.

The RAX XS4-21S3 provides two high-performance Intel Xeon Scalable processors, four hot-swappable drive bays that support NVMe storage, and up to two PCIe 4.0 slots.

Ideal Rackmount Servers Use Cases

  • Cloud Computing
  • Data Center, front-end server
  • High-Performance Computing
  • SMB file/exchange server

Specifications

Industries

Cloud Services
Engineering
Financial Services
Life Sciences
Name your configuration:?
Configured Price:
$6,357.00
From $211.75/mo

Barebone

Delay

Processor

Processor Selection Limitation:
The processor selection of this configuration is limited due to thermal restrictions. The maximum processor TDP supported in this configuration is 205W.

Processors with higher TDPs may be supported under specific operating conditions or require additional items for proper support. Please contact sales department for additional information.

3rd Generation Intel® Xeon® Scalable Silver Processors

2
2[ +544.00 ]
2[ +1,398.00 ]

3rd Generation Intel® Xeon® Scalable Gold Processors

2[ +1,306.00 ]
2[ +3,014.00 ]
2[ +2,366.00 ]
2[ +3,878.00 ]
2Delay[ +5,058.00 ]
2[ +5,310.00 ]

Featuring Intel Speed Select Technology

2[ +52.00 ]
2[ +1,152.00 ]
2[ +2,310.00 ]
2[ +4,364.00 ]

Specialized for Networking & NFV

2[ +2,576.00 ]
2[ +4,518.00 ]
2[ +6,526.00 ]

Specialized for Security

2[ +10,060.00 ]

Long Life Cycle & NEBS Thermal Friendly

2[ +158.00 ]
2[ +3,502.00 ]
2Delay[ +6,374.00 ]

Memory

128 GB via 16 DIMMs at 3200 MHz.

3200MHz ECC Registered DDR4 DIMMs

16
16[ +256.00 ]
16[ +1,536.00 ]
16[ +3,264.00 ]
16[ +22,768.00 ]

max quantity: 2U.2/U.3 NVMe Drive

Solidigm P5520 Series PCIe 4.0 x4 NVMe Solid State Drives (1x DWPD)

[ +834.00 ]
[ +1,461.00 ]
[ +2,952.00 ]

Solidigm P5620 Series PCIe 4.0 x4 NVMe Solid State Drives (3x DWPD)

[ +616.00 ]
[ +897.00 ]
[ +1,643.00 ]
[ +3,220.00 ]

Micron 7450 PRO Series PCIe 4.0 x4 NVMe Solid State Drives (1x DWPD)

[ +230.00 ]
[ +351.00 ]
[ +629.00 ]
[ +1,131.00 ]
[ +2,165.00 ]

Micron 7450 MAX Series PCIe 4.0 x4 NVMe Solid State Drives (3x DWPD)

[ +264.00 ]
[ +403.00 ]
[ +723.00 ]
[ +1,300.00 ]
[ +2,489.00 ]

Micron 7500 PRO Series PCIe 4.0 x4 NVMe Solid State Drives (1x DWPD)

[ +230.00 ]
[ +346.00 ]
[ +603.00 ]
[ +1,115.00 ]
[ +2,077.00 ]

Micron 7500 MAX Series PCIe 4.0 x4 NVMe Solid State Drives (3x DWPD)

[ +397.00 ]
[ +397.00 ]
[ +692.00 ]
[ +1,281.00 ]
[ +2,387.00 ]

Micron 9400 PRO Series PCIe 4.0 x4 NVMe Solid State Drives (1x DWPD)

[ +1,412.00 ]
[ +2,712.00 ]
[ +4,967.00 ]

Micron 9400 MAX Series PCIe 4.0 x4 NVMe Solid State Drives (3x DWPD)

[ +1,622.00 ]
[ +3,118.00 ]
[ +5,711.00 ]

Micron 9550 PRO Series PCIe 5.0 1x4 NVMe Solid State Drives (1x DWPD)

[ +733.00 ]
[ +1,337.00 ]
[ +2,491.00 ]
[ +4,824.00 ]

Micron 9550 MAX Series PCIe 5.0 1x4 NVMe Solid State Drives (3x DWPD)

[ +843.00 ]
[ +1,537.00 ]
[ +2,863.00 ]
[ +5,546.00 ]

Samsung PM9A3 Series U.2 PCIe 4.0 x4 NVMe Solid State Drive (1x DWPD)

[ +219.00 ]
[ +365.00 ]
[ +779.00 ]
[ +1,275.00 ]
[ +2,605.00 ]

SanDisk SN655 Series PCIe 4.0 x4 NVMe Solid State Drive (1x DWPD)

[ +1,175.00 ]
[ +1,915.00 ]
[ +3,419.00 ]
[ +6,179.00 ]
[ +12,325.00 ]

Kioxia CD8-R Series PCIe 4.0 x4 NVMe Solid State Drives (1x DWPD)

[ +379.00 ]
[ +539.00 ]
[ +715.00 ]
[ +1,125.00 ]
[ +2,269.00 ]

Kioxia CD8-V Series PCIe 4.0 x4 NVMe Solid State Drives (3x DWPD)

[ +395.00 ]
[ +565.00 ]
[ +745.00 ]
[ +1,205.00 ]
[ +2,385.00 ]

max quantity: 4Hard Drive

Western Digital Enterprise-Class SATA Hard Drives

[ +106.00 ]
[ +140.00 ]
[ +181.00 ]
[ +209.00 ]
Delay[ +240.00 ]
[ +268.00 ]
Delay[ +363.00 ]
[ +390.00 ]
[ +437.00 ]
[ +451.00 ]
Delay[ +567.00 ]
[ +511.00 ]
[ +604.00 ]

Western Digital Enterprise-Class SAS Hard Drives

[ +194.00 ]
[ +222.00 ]
[ +253.00 ]
[ +282.00 ]
[ +354.00 ]
[ +377.00 ]
[ +403.00 ]
[ +451.00 ]
[ +533.00 ]
[ +511.00 ]
[ +524.00 ]
[ +598.00 ]

Seagate Enterprise-Class SATA Hard Drives

[ +185.00 ]
[ +237.00 ]
[ +266.00 ]
[ +404.00 ]
[ +458.00 ]
[ +480.00 ]

Seagate Enterprise-Class X24 SATA Hard Drives

[ +362.00 ]
[ +404.00 ]
[ +480.00 ]
[ +580.00 ]

Seagate Enterprise-Class SAS Hard Drives

[ +280.00 ]
[ +473.00 ]

Seagate Enterprise-Class X24 SAS Hard Drives

[ +376.00 ]
[ +418.00 ]
[ +493.00 ]
Delay[ +600.00 ]

Micron 5400 PRO Enterprise-Class SATA Solid State Drives

[ +99.00 ]
[ +141.00 ]
[ +212.00 ]
[ +351.00 ]
[ +657.00 ]
[ +1,143.00 ]

Micron 5400 MAX Enterprise-Class SATA Solid State Drives

[ +167.00 ]
[ +253.00 ]
[ +439.00 ]
[ +812.00 ]

Solidigm D3-S4520 Series Enterprise-Class SATA Solid State Drives

[ +413.00 ]
[ +697.00 ]

Solidigm D3-S4620 Series Enterprise-Class SATA Solid State Drives

[ +595.00 ]

max quantity: 1Controller Card

12Gb SAS Host Bus Adapter

[ +451.00 ]

12Gb SAS RAID Controllers (RAID 0/1/5/6/10/50/60)

[ +440.00 ]
[ +950.00 ]
Delay[ +754.00 ]

max quantity: 1Battery Backup

[ +359.00 ]
[ +249.00 ]

max quantity: 1Network Adapter - OCP

Broadcom NetXtreme Ethernet Adapters

[ +229.00 ]
[ +313.00 ]
Delay[ +341.00 ]
Delay[ +345.00 ]
Delay[ +554.00 ]
Delay[ +699.00 ]
[ +893.00 ]
[ +999.00 ]

Intel X710 Series 10-Gigabit Ethernet Adapters

[ +318.00 ]
[ +678.00 ]
[ +283.00 ]
[ +509.00 ]

Intel E810 Series 25/100-Gigabit Ethernet Adapters

[ +188.00 ]
[ +477.00 ]
[ +390.00 ]
[ +478.00 ]

max quantity: 2min quantity: 1Network Adapter

This server does not provide an onboard network controller. Please select a NIC.

Broadcom Ethernet Adapters

[ -77.00 ]
[ +97.00 ]
[ +298.00 ]
Delay[ +235.00 ]
[ +243.00 ]
Delay[ +562.00 ]
[ +416.00 ]
[ +982.00 ]
[ +999.00 ]

Intel X550 Series 10-Gigabit Ethernet Adapters

[ +159.00 ]

Intel X710 Series 10-Gigabit Ethernet Adapters

[ +308.00 ]
[ +657.00 ]
[ +283.00 ]
[ +506.00 ]

Intel E810 Series 25/100-Gigabit Ethernet Adapters

[ +189.00 ]
[ +477.00 ]
[ +389.00 ]

Mellanox ConnectX-4 EN Series 10-Gigabit Ethernet Adapter

[ +150.00 ]

Mellanox ConnectX-5 EN Series 100-Gigabit Ethernet Adapters

Delay[ +1,063.00 ]

NVIDIA ConnectX-6 Dx Series 100/200-Gigabit Ethernet Adapters

Delay[ +1,263.00 ]
[ +1,625.00 ]
[ +1,716.00 ]

Mellanox ConnectX-5 VPI Series 100-Gigabit EDR InfiniBand Adapters

[ +1,290.00 ]

Mellanox ConnectX-6 VPI Series 200-Gigabit HDR InfiniBand Adapters

[ +1,625.00 ]
[ +2,411.00 ]

max quantity: 1Trusted Platform Module

[ +99.00 ]

min quantity: 2Cables

This system does not ship with power cables included. Please select a power cable if needed.

C13 to NEMA 5-15P

[ -5.42 ]
[ +12.64 ]
[ +25.72 ]

C13 to C14

[ +24.00 ]
[ +28.00 ]
[ +32.00 ]
[ +36.00 ]
[ +40.00 ]

Operating System

No Operating System

Microsoft Windows Server 2022

[ +799.00 ]
[ +1,239.00 ]
[ +4,899.00 ]
[ +7,451.00 ]

Microsoft Windows Server 2025

[ +1,160.00 ]
[ +1,728.00 ]
[ +6,449.00 ]
[ +9,674.00 ]

CIQ Rocky Linux Support

[ +540.00 ]
[ +486.00 ]

Linux Distributions

[ +49.00 ]
[ +49.00 ]
[ +49.00 ]
[ +49.00 ]
[ +49.00 ]
[ +49.00 ]

Red Hat Enterprise Linux Subscriptions

[ +389.00 ]
[ +849.00 ]
[ +1,489.00 ]
[ +409.00 ]
[ +859.00 ]
[ +1,489.00 ]

Software

Downgrade Kits for Microsoft Windows Server

[ +49.00 ]
[ +49.00 ]
[ +49.00 ]
[ +49.00 ]
[ +49.00 ]

Device Client Access Licenses for Windows Server 2022

[ +39.00 ]
[ +189.00 ]

User Client Access Licenses for Windows Server 2022

[ +49.00 ]
[ +239.00 ]

Device Client Access Licenses for Windows Server 2025

[ +49.00 ]
[ +245.00 ]

User Client Access Licenses for Windows Server 2025

[ +64.00 ]
[ +296.00 ]

Additional Core Licenses for Windows Server 2022 Standard Edition

[ +110.00 ]
[ +220.00 ]
[ +880.00 ]

Additional Core Licenses for Windows Server 2022 Datacenter Edition

[ +638.00 ]
[ +1,276.00 ]
[ +5,104.00 ]

Additional Core Licenses for Windows Server 2025 Standard Edition

[ +154.00 ]
[ +300.00 ]
[ +1,177.00 ]

Additional Core Licenses for Windows Server 2025 Datacenter Edition

[ +825.00 ]
[ +1,635.00 ]
[ +6,519.00 ]

Warranty

Available
Available
  

3-Year Warranty Options

[ -50.00 ]
[ +400.00 ]

4-Year Warranty Options

[ +221.00 ]
[ +741.00 ]

5-Year Warranty Options

[ +569.00 ]
[ +1,209.00 ]
Configured Price: $6,357.00
From $211.75/mo

System Comments

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Prices for products are subject to change without notice and DO NOT INCLUDE SHIPPING AND/OR HANDLING CHARGES OR APPLICABLE TAXES. Prices quoted cannot be guaranteed to be accurate until reviewed and accepted by Thinkmate and are intended for same-day purchase. Consequently, prices and special offers are subject to change or expire without notice. Thinkmate shall not be responsible for typographical or other errors or omissions regarding prices or any other information. The system configuration information on this page is presented for your convenience only. Due to the vast number of different possible combinations of components and software and the possibility of unexpected unworkable configuration limitations and incompatibilities, in the event that a displayed system configuration must be modified in order to build a properly functioning computer system, Thinkmate shall not be held responsible for any additional costs of reconfiguration of a system design and any additional costs of reconfiguration shall be the responsibility of purchaser. Please note that computer system pictures may not reflect the actual configuration chosen.