# PPC-A55-121

> The PPC-A55-121 is a 12.1” industrial PC powered by Rockchip RK3568 processor, featuring a quad-core Cortex®-A55 CPU.

- **Model:** PPC-A55-121
- **Manufacturer:** Chipsee
- **Category:** [Panel PCs & HMI](https://www.innosmart.bg/en/catalog/panel-computers-hmi) — `panel-computers-hmi`, [.md](https://www.innosmart.bg/en/catalog/panel-computers-hmi.md)
- **Subcategory:** [Panel PCs & HMI](https://www.innosmart.bg/en/catalog/panel-computers-hmi/panel-computers-hmi) — `panel-computers-hmi`, [.md](https://www.innosmart.bg/en/catalog/panel-computers-hmi/panel-computers-hmi.md)
- **Status:** `active` — sold
- **Datasheet PDF:** none published
- **HTML page:** https://www.innosmart.bg/en/catalog/product/by-id/PPC-A55-121
- **Request a quote:** https://www.innosmart.bg/en/contact?product=PPC-A55-121

Prices and stock levels are not published; for a quote use the enquiry link above.

## Key parameters

| Parameter | Value | Key |
|---|---|---|
| Display size | 12.1" | `display_size` |
| Resolution | 1024 × 768 px | `resolution` |
| Width | 1024 px | `width_px` |
| Height | 768 px | `height_px` |
| Platform | Rockchip ARM | `platform` |
| CPU | ARM: Rockchip RK3568 | `cpu` |
| RAM | 4GB | `ram` |
| eMMC | 64GB | `emmc` |
| Operating system | Android, Buildroot, Debian | `operating_system` |
| Touchscreen | Capacitive | `touchscreen` |
| Operating temperature | -20 – 70 °C | `operating_temperature` |

Values are read from the table below. A parameter is absent when the manufacturer does not state it, or does not state it as one value — it is then only in the table.

## Specifications

### Specifications

| Parameter | Value |
|---|---|
| SKU | CS10768-RK3568-121P |
| Net weight | 3100 g |
| CPU | ARM: Rockchip RK3568 |
| RAM | 4GB |
| eMMC | 64GB |
| SSD | Optional, supports M.2 2280 NVME SSD (PCI-E 3.0 x 2) |
| External storage | TF Card, Supports up to 128GB SDHC |
| Display size | 12.1" |
| Display resolution | 1024*768 |
| Brightness | 400 NIT |
| Touch Screen | Capacitive |
| USB | 1 x USB 3.0 HOST; 1 x USB Type-C; 1x USB 2.0 HOST |
| CAN | 2 x CAN by default that can be configured to RS232 |
| RS232 | 2 x RS232 (including 1 debug port)by default. Up to 6 x RS232. |
| RS485 | 2 x RS485 by default that can be configured to RS232 |
| RTC | High accuracy RTC with farad capacitor, can work 1 week after power off (default). High accuracy RTC with lithium coin battery, can work 3 years after power off (optional). |
| LAN | 1 x RJ45, GbE |
| HDMI | 1 x HDMI OUT |
| GPIO | 8 Channels, 4 Input, 4 Output |
| Audio | 3.5mm Audio In/Out Connector; Internal 2W Speaker |
| WiFi/BT | Onboard |
| 4G/LTE | Optional |
| PoE | Not supported |
| Buzzer | Yes |
| Power Input | 15~36V DC |
| Current at 15V | 0.80A Max |
| Power Consumption | 12W |
| Working Temperature | -20°C ~ 70°C. |
| Operating System | Android; Buildroot; Debian |

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Source: the innoSMART Automation catalogue (Hikrobot, Daheng Imaging and Chipsee). Specifications are the manufacturer's own, in English.