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Product Datasheet

20 May 2026

High Performance Computing · Rackmount-Tower-Workstation

HPS-621U4A

Series: HPS

Manufactured byAvalue
HPS-621U4A Front

The Avalue HPS-621U4A is a 19" 4U rackmount workstation built around the Avalue HPM-621UA server board with a single 1st/2nd Generation Intel® Xeon® Scalable processor (max. TDP up to 150W) and Intel® C621 chipset, designed as a manageable, GPU/accelerator-ready compute node for HPC and edge servers. With 6 x DDR4 2933/2666/2400/2133MHz RDIMM/LRDIMM up to 768GB, a 1300W ATX PSU and IPMI 2.0 via an ASPEED AST2500 BMC, it packages Xeon Scalable performance into a 430 x 174.8 x 528 mm chassis. It provides flexible PCIe Gen3 expansion (up to 3 x x16 or 6 x x8 plus a PCI 3.0 slot), an M.2 NVMe, 3 x front-accessible 2.5" bays, quad Intel I210AT 1GbE, USB 3.2 Gen1 and VGA, running Windows 10 IoT, Windows Server 2016/2019 or Ubuntu 18.04 LTS or later.

Key Features

  • 19" 4U rackmount workstation (430 x 174.8 x 528 mm)
  • Single 1st/2nd Gen Intel® Xeon® Scalable (FCLGA3647, max. TDP 150W)
  • Avalue HPM-621UA server board, Intel® C621 chipset, IPMI 2.0
  • 6 x DDR4 2933/2666/2400/2133MHz RDIMM/LRDIMM up to 768GB
  • 1 x 1300W PS2 ATX PSU
  • Flexible PCIe Gen3: 3 x x16 or 6 x x8 + 1 x PCI 3.0
  • 3 x front-accessible 2.5" bays + 1 x M.2 NVMe
  • 4 x Intel I210AT 1GbE controllers
  • Windows 10 IoT / Server 2016/2019 / Ubuntu

Technical Specifications

System Information

ProcessorIntel FCLGA3647 Socket supports 1st and 2nd Generation Intel® Xeon® Scalable Processors (Max. TDP at 150W)
Platform Controller HubIntel® C621 Chipset
System Memory6 x DDR4 2933/ 2666/ 2400/ 2133 MHz RDIMM/ LRDIMM up to 768GB
BIOSAMI UEFI BIOS
Watchdog TimerSystem reset event 0 ~ 6553 seconds
H/W Status MonitorCPU temperature, fan speed and voltage monitoring, fan speed control, case open detection
TPMTPM 2.0 onboard
IPMIIPMI 2.0 with AST 2500 BMC controller onboard
SBCHPM-621UA

Front I/O

USB2 x USB 3.2 Gen1 ports
Power Button1 x Power button
Reset Button1 x Reset button
LED Indicator1 x Power status indicator, 1 x Disk activity indicator, 1 x Network activity indicator

Rear I/O

USB4 x USB 3.2 Gen1 ports
COM Port1 x RS232 port (Bracket shares with VGA port, RS232 on the top)
VGA1 x VGA port (Bracket shares with Serial port, VGA on the bottom)
RJ-454 x RJ45 (LAN1 shares IPMI port)

Display

Graphic ChipsetAST 2500 BMC controller
Resolution1 x VGA port VGA: 1920 x 1200 @ 60Hz 32bpp

Power Requirement

Power Supply Unit1 x 1300W PS2 ATX PSU

Expansion

Expansion1 x PCI 3.0 slot, 3 x PCIe Gen3 x16 slots or 6 x PCIe Gen3 x8 slots, Slot 1, PCI 3.0, Slot 2, PCIe 3.0 x8, Slot 3, PCIe 3.0 x16 (switches to x8 when Slot 2 used), Slot 4, PCIe 3.0 x8, Slot 5, PCIe 3.0 x16 (switches to x8 when Slot 4 used), Slot 6, PCIe 3.0 x8, Slot 7, PCIe 3.0 x16 (closest to CPU, switches to x8 when Slot 6 used)

Storage

M.21 x M.2 M-Key PCIe 3.0 x4 NVMe SSD, 2242/2260/2280 form factor
2.5 Drive Bay3 x Front accessible 2.5" storage bays

Ethernet

LAN Chipset4 x Intel I210AT 1GbE controllers
LAN Port4 x RJ45 (LAN1 shares IPMI port)

Mechanical & Environmental

Operating Temp.0 ~ 40°C (L6 system)
Storage Temp.-40°C 24hrs IEC60068-2-1 Cold test Test: Ab, 70°C/ RH95% 24hrs IEC 60068-2-3 Test: Ca
Operating Humidity40°C @ 95% Relative Humidity, Non-condensing
Weight19KG
Dimension (W x L x D)19" 4U Chassis 430mm(W) x 174.8mm(H) x 650mm(D), 482.6mm(W) x 174.8mm(H) x 650mm(D) with ear mount

Software Support

OSWindows 10 IoT Enterprise, Windows Server 2016, Windows Server 2019, Ubuntu 18.04 LTS or Later

Ordering Information

Ordering InformationHPS-621U4AD-A1R: L6 19" 4U Rackmount w/HPM-621UAA/1300W/1x5.25"/3x2.5"

Authorised distributor, India

TSL Automation Solutions

Mumbai, India

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© 2026 TSL Automation Solutions. Specifications subject to change without notice. This datasheet was generated from manufacturer-supplied technical data.