| Developer | Qisda OEM/ODM AUO Optronics |
|---|---|
| Manufacturer | Qisda OEM/ODM[1][2] |
| Type | e-book reader |
| Released | 2011 |
| Operating system | Linux UI Engine QT embedded 4.5.1 OS: Linux 2.6.21 |
| CPU | Samsung S3C2416 ARM9 @ 400MHz |
| Memory | 128 MB (MDDR), |
| Storage | Internal: 2GB (NAND) External: microSD/microSDHC |
| Display | 9-inch (230 mm) SiPix |
| Graphics | 1024 × 768, 150 ppi density, 16 levels of grayscale |
| Sound | built-in speakers (0.5W) |
| Input | touchscreen, 7 keys |
| Touchpad | Capacitive |
| Connectivity | Wi-Fi b/g, microUSB high speed, audio jack Optional: 3.5G HSDPA |
| Power | 1530 mAh, 3.7 V |
| Dimensions | 166.9 × 227.8 × 10.5 mm |
| Weight | 487 gram (without Wi-Fi) |
| Predecessor | Qisda ES600 |
Qisda ES900 is a discontinued electronic-book reader developed by Qisda Corporation and based on a Linux platform. The device is sold under various brand names worldwide.