Specifications
Vendor
Avalue Technology
Model
SPC-21WR2
CPU
Rockchip RK3568, quad-core Arm Cortex-A55 up to 2.0 GHz
Display
21.5" 1920 x 1080 FHD, projected capacitive multi-touch (10-point)
Ingress Protection
IP65 front standard; whole-system IP66/IP69K option
Enclosure
Fanless stainless steel chassis, zero-bezel front
Memory / Storage
2 GB DDR4 / 32 GB eMMC
Operating System
Android 11 factory image
I/O
1 x RJ45 GbE LAN, 2 x USB 3.0 Type A, 1 x HDMI 1.4 out, line out
Power
+12V to +24V DC (optional 24V M12 model), 60 W adapter option
Mounting
Wall / stand / VESA 75 x 75 mm
Dimensions
541.6 x 348.6 x 47 mm
Operating Temp.
0 degC to +40 degC (storage -20 to +60 degC)
Humidity
40 degC @ 95% RH non-condensing
Shock / Vibration
ISTA 2A, IEC 60068-2-32; 1.5 Grms IEC 60068-2-64
Certification
CE / FCC, RoHS
Why the SPC-WR2 series uses RK3568, not x86
The SPC-WR2 family is built around the Rockchip RK3568 — a quad-core Arm Cortex-A55 SoC with an integrated Mali-G52 GPU and a 0.8 TOPS NPU. Avalue chose this platform rather than a low-power x86 part because the stainless-steel fanless chassis cannot dissipate a 15 W x86 package at 40 degC ambient without a vent, and a vent defeats the washdown rating. The RK3568 runs 6-8 W under HMI load, which is inside the passive budget of a sealed stainless enclosure.
The SPC-WR2 series scales the same board and chassis across 7-, 10.1- and 21.5-inch panel sizes so a machine builder can standardise on one Android image, one GPIO driver and one mounting scheme across an entire production line. The M12 connector option converts the whole system to IP66/IP69K for food, beverage and pharmaceutical washdown lines, where high-pressure hot-water cleaning is routine. Typical deployments are CNC and injection-moulding HMI, packaging-line terminals, AGV docking stations, and outdoor kiosk or charging-station interfaces.
Avalue products are supplied by QS Compute with B2B pricing, global shipping and short sample lead times for AI data center, edge deployment and industrial integration projects.
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