HP t638 Thin Client
Overview
HP t638 Thin Client
Front View
- 1. Power button
- 2. Power On indicator
- 3. (1) USB-A 3.1 Gen 1 Type A port
- 4. (1) USB-A 2.0 Type A port
- 5. 3.5 mm combo headset/audio jack
- 6. System stand
- 7. Access panel to information labels and VESA 100 mounting holes
Back View
- 1. (4) USB-A 2.0 Type A ports
- 2. (2) Serial port with configurable power
- 3. (1) 19.5 V DC power input
- 4. (1) Cable lock slot
- 5. (1) PS2 Combo Keyboard/Mouse
- 6. (1) Mini-DP Dual Serial Port
- 7. (1) VGA analog video output
- 8. (1) HDMI digital video output
- 9. (1) Parallel port
- 10. (1) RJ45 GbE network connector
- 11. (1) System stand
At a Glance
- Intel® Celeron® Processor J4125; 2.0 – 2.7 GHz; 4 cores
- DDR4 dual-channel SDRAM system memory; up to 2400 MT/s transfer rate; two SODIMM slots
- Embedded Multi Media Card 16 / 32/ 64 GB
- 1 x HDMI 1.4b supporting up to 3840 x 2160 @ 30 Hz resolutions, 1x VGA video outputs supporting up to 1920 x 1200 @ 60 Hz resolutions
- Solid-state flash memory storage; M.2 form factor modules
- Gigabit Ethernet (GbE) network connection
- Fast Ethernet (100 Mb/s) or Gigabit (1,000 Mb/s)
- Optional Intel® Wi-Fi® AX200 Wi-Fi 6/Bluetooth® 5 adapter including antennas integrated internally in the chassis
- Option Port with a selection of available factory options
- Integrated PC speaker for basic audio playback; 3.5 mm combo headset/audio port on front
- 45W non-PFC external power adapter
- TCG certified TPM version 2.0 (firmware); other security features include a system UEFI designed to address NIST SP 800-147 guidelines, cable lock slot
- Passive thermal design (no cooling fans) and active thermal management technology that monitors the system operating temperatures, throttles SOC operation if appropriate and prevents unit thermal shutdown.
- Rated for a maximum ambient operating temperature of 40 degree C
- ENERGY STAR® certified and EPEAT® 2019 Silver registered in the United States (except for some models configured with Fiber Optic NIC networking options).
- Post-consumer recycled plastics content greater than 25% total unit plastics (by weight)
- Low halogen material content
- All models TAA compliant in North America
Warranty
HP Customer Support: limited three-year hardware limited warranty in most regions; HP Care Packs are extended service contracts that go beyond your standard limited warranties; for more details visit http://www.hp.com/go/cpc
Technical Specifications
Operating Systems
- HP ThinPro, including HP Smart Zero Core
- Windows 10 IoT Enterprise LTSC 2019
Processor
Model | CPU Frequency Max/Base | Cores | GPU Type | GPU Frequency |
Intel® Celeron® Processor J4125 | 2.7/2.0 GHz | 4 | Intel UHD Graphic 600 | 250 MHz |
Graphics
- Number of displays supported: 2
- Video outputs: Standard: (1) VGA analog output, (1) HDMI digital output
- Max. screen resolution: 3840 x 2160 @ 30 Hz (With HDMI Output)
- NOTE: HP recommends dual channel memory (two SODIMMs) configurations for optimal display resolution performance
Memory
- Type: DDR4 dual channel SDRAM
- Data Transfer Rate: Up to 2,400 MT/s
- Peak Transfer Rate: Up to 19,200 MB/s
- Number of Slots: 2 x SODIMM
- Capacities: 4, 8 GB
- NOTES: The system's Graphics Processing Unit (GPU) uses part of the total system memory. System memory dedicated to graphics performance is not available for use by other programs. HP recommends dual channel memory (two SODIMMs) configurations for optimal system performance.
UEFI
- UEFI Specification Revision: 2.3.1
- TPM 2.0 (firmware): Meets requirements for Common Criteria, an independent third-party certification of trustworthiness
- Security features: Meets requirements for FIPS 140-2, a standard for cryptographic integrity. System UEFI designed to address NIST SP 800-147 guidelines.
Storage
- Type: NAND flash memory; non-volatile
- Number of Sockets: 1 x M.2
- Capacities: 16 GB M.2 eMMC flash module, 32 GB M.2 eMMC flash module, 64 GB M.2 eMMC flash module, 128 GB M.2 SATA flash module
Input/Output
- USB: Front access: (1) USB-A 3.1 Gen 1 port, (1) USB-A 2.0 Type A port. Rear access: (4) USB-A 2.0 Type A port.
- Video Outputs: Standard: (1) VGA analog output, (1) HDMI digital output
- I/O Interfaces: Standard: (1) RJ45 network connector, (1) 3.5 mm combo headset/audio jack (front), (2) serial port with configurable power, (2) serial ports enabled with an included cable adapter, (1) parallel port.
- Option Port: The rear I/O panel includes an Option Port that can be configured with one of the following factory options: 1 Mini-DP Dual serial port enabled with an included cable adapter, Combo PS/2 port with an included cable adapter.
Audio/Video
- Audio Subsystem: Internal amplified speaker system for basic audio playback
- Audio CODECS: 3.5 mm combo headset/headphone/analog MIC in (front access), MP3, AAC Stereo, HE AAC
Video CODECs
- Includes hardware acceleration support
- MPEG-4 part 2 (DivX, Xvid)
- MPEG-4 part 10 (H.264, AVC), Advanced Video Coding (AVC) (H.264 encode)
- MPEG-H part 2, High Efficiency Video Coding (HEVC) (H.265 decode)
- WMV 7/8/9 VC-1 & ASF Demuxer
- Includes hardware acceleration support
Networking
- Local Area Networking: Realtek RTL8111EPH-CG Gigabit Ethernet (GbE) Controller
- Wi-Fi Networking: Intel® AX 200 Wi-Fi 6/Bluetooth® 5
- NOTES: Wireless access point and internet access required. Availability of public wireless access points limited. Wireless features, performance and support may vary depending on environmental variables such placement, settings and firmware of your access points. Please contact your wireless vendor for support of your wireless environment.
Software Support
Host Environment
Host Environment | Protocol | HP ThinPro | Microsoft Windows 10 IoT Enterprise 2019 |
Remote Desktop Services | Remote FX (RFX), RDP | ✔ | ✔ |
Citrix® | ICA, HDX | ✔ | ✔ |
VMware® Horizon | RDP, PCoIP, Blast Extreme | ✔ | ✔ |
Protocol Clients
Protocol Clients | HP ThinPro | Microsoft Windows 10 IoT Enterprise 2019 |
Citrix® Workspace app | ✔ | ✔ |
Microsoft Remote Desktop Client | ✔ | ✔ |
Free Remote Desktop Client | ✔ | ✔ |
VMware™ Horizon View™ Client | ✔ | ✔ |
HP Remote Graphics Software (RGS) | via add-on | |
Turbosoft TTerm for Linux® Terminal emulation Software | via add-on | |
Turbosoft TTWin Terminal emulation software | via add-on |
Browser Support
Browser Support | HP ThinPro | Microsoft Windows 10 IoT Enterprise 2019 |
Mozilla Firefox | ✔ | ✔ |
Internet Explorer | ✔ |
Security
Security | HP ThinPro | Microsoft Windows 10 IoT Enterprise 2019 |
Smart Card | ✔ | ✔ |
Log-on Manager | ✔ | ✔ |
Read only Operating System | ✔ | ✔ |
802.1x | ✔ | ✔ |
Microsoft Firewall | ✔ | |
HP Write Manager | ✔ | |
Microsoft Unified Write Filter | ✔ |
NOTE: the HP Write Manager is the default active write filter. The Microsoft Unified Write Filter is disabled by default but can be enabled by the user if required.
Management Tools
Management Tools | HP ThinPro | Microsoft Windows 10 IoT Enterprise 2019 |
HP Device Manager | ✔ | ✔ |
HP ThinUpdate | ✔ | ✔ |
HP Easy Tools | ✔ | ✔ |
HP Smart Zero Client Services | ✔ | |
Microsoft SCCM/EDM agent | ✔ | |
HP USB Port Manager | ✔ |
Additional Windows Components
Additional Windows Components | HP ThinPro | Microsoft Windows 10 IoT Enterprise 2019 |
HP Easy Shell | ✔ | |
Windows Media Player | ✔ | |
Microsoft Direct Access | ✔ | |
Microsoft BranchCache | ✔ |
Audio/Video CODECs
- MP3
- WMA stereo
- AAC stereo & HE AAC
- Microsoft AC3 encoder
- MPEG-1
- MPEG-4 part 2 (DivX, Xvid, H.263)
- MPEG-4 part 10 (H.264, AVC)
- WMV 7/8/9/ VC-1 & ASF Demuxer
Recommended TC Configuration for Microsoft Teams Media Optimization
TC CPU | VMware Teams Optimization | Citrix Teams Optimization |
t430 1.10 GHz 2 Core | - | - |
t530 1.50 GHz 2 Core | - | - |
t540 1.50 GHz 2 Core | - | - |
t630 2.00 GHz 4 Core | ✔ | ✔ |
t628 1.99 GHz 4 Core | - | ✔ |
t638 2.00 GHz 4 Core | ✔ | ✔ |
t640 2.40 GHz 2 Core | ✔ | ✔ |
t730 2.70 GHz 4 Core | ✔ | ✔ |
t740 3.25 GHz 4 Core | ✔ | ✔ |
mt21 1.80 GHz 2 Core | - | ✔ |
mt22 1.90 GHz 2 Core | - | ✔ |
mt31 1.80 GHz 2 Core | - | ✔ |
mt32 2.70 GHz 4 Core | ✔ | ✔ |
mt45 2.10 GHz 4 Core | ✔ | ✔ |
mt46 2.50 GHz 4 Core | Not recommended | recommended |
Weights & Dimensions
- W x D x H (vertical orientation, without stand): 50 x 210 x 210 mm, Volume: 2.2 liter
- W x D x H (vertical orientation, with stand): 152 x 210 x 210 mm, Volume: 6.7 liter
- System Weight (unit with stand): 1231 g
- Shipping Weight: 3238.5 g
- NOTE: All measurements are approximate; the addition of optional modules will increase the weight.
External Power Supply
45W non-PFC Smart external power adapter. Worldwide auto-sensing 100 - 240 VAC; nominal voltage is 120 VAC; 50 - 60 Hz. Energy saving automatic power-down; surge tolerant. 1.8m output cable. External power adapters are sourced from several suppliers in order to ensure adequate supply and availability is maintained. The actual dimensions of the power brick will vary by supplier.
Power Adapter Specifications
HP P/N | Vendor | Dimensions: |
L25296-001 | Lite-On | 94 x 40 x 26.5 mm |
L25296-002 | Chicony | 95 x 40 x 26.5 mm |
L25296-003 | Delta | 94 x 39 x 26.5 mm |
L25296-004 | AcBel | 91.4 x 44 x 26.8 mm |
Compliance and Certifications
Environmental Stewardship
Worldwide (ENERGY STAR®, EPEAT® 2019 Silver registered in the United States (except for some models configured with Fiber Optic NIC networking options)¹, RoHS2, ERP, CECP& SEPA, HP GSE, WEEE, Low Halogen², etc.)
Product Safety
Worldwide (UL, CB, CCC, BSMI, etc.)
Electromagnetic Compliance (EMC)
Worldwide (EN/CNS/KCC) “Class B” EMI regulations
International Medical Safety Standard
EN60601-1-2 (Medical Equipment EMC)
Accessibility
Section 508 Accessibility; VPAT report available.
Environmental
Operating Temperature Range
50° to 104° F (10° to 40° C)
Non-operating Temperature Range
-22° to 140° F (-30° to 60° C)
Humidity
Condensing: 20% to 80%. Non-condensing: 10% to 90%
NOTE: Specifications are at sea level with altitude derating of 1° C/300m (1.8° F/1000ft) to a maximum of 3 Km (10,000 ft), with no direct, sustained sunlight. Upper limit may be limited by the type and number of options installed.
Basic Configuration
Energy Consumption (in accordance with US ENERGY STAR® test method)
Voltage/Frequency | Normal Operation (Short idle) | Normal Operation (Long idle) | Sleep | Off |
115 V ac, 60 Hz | 5.436 | 4.02 | 0.84 | 0.838 |
230 V ac, 50 Hz | 5.784 | 4.356 | 0.852 | 0.828 |
100 V ac, 60 Hz | 5.388 | 4.14 | 0.854 | 0.852 |
Heat Dissipation*
Voltage/Frequency | Normal Operation (Short idle) | Normal Operation (Long idle) | Sleep | Off |
115 V ac, 60 Hz | 19 | 14 | 3 | 3 |
230 V ac, 50 Hz | 20 | 15 | 3 | 3 |
100 V ac, 60 Hz | 18 | 14 | 3 | 3 |
NOTE: Heat dissipation is calculated based on the measured watts, assuming the service level is attained for one hour.
System configuration includes: Thin Pro - 64bit, 128 GB primary storage and 8 GB of system memory, USB keyboard & USB mouse.
Summary of Changes
Date of change: | Version History: | Type of change: | Description of change: |
January 14, 2021 | From v1 to v2 | Changed | SOFTWARE SUPPORT section |
© 2021 HP Development Company, L.P. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express limited warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. DisplayPort™™ and the DisplayPort™™ logo are trademarks owned by the Video Electronics Standards Association (VESA®) in the United States and other countries. Amazon Web Services, the “Powered by Amazon Web Services” logo, and Amazon WorkSpaces are trademarks of Amazon.com, Inc. or its affiliates in the United States and/or other countries. Bluetooth® is a trademark owned by its proprietor and used by HP Inc. under license. ENERGY STAR is a registered trademark owned by the U.S. Environmental Protection Agency. Linux® is the registered trademark of Linus Torvalds in the U.S. and other countries. Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. Intel and Celeron are trademarks of Intel Corporation in the U.S. and other countries. VMware Horizon and VMware Horizon View are registered trademarks or trademarks of VMware, Inc. in the United States and/or other jurisdictions. Citrix and Citrix Workspace are trademarks of Citrix Systems, Inc. and/or one more of its subsidiaries, and may be registered in the United States Patent and Trademark Office and in other countries.