| Processor ASUS ZenBook UX391UA-EA074R-OSS |
| Processor model: | i5-8250U |
| Processor socket: | BGA 1356 |
| Processor threads: | 8 |
| Processor cores: | 4 |
| Processor codename: | Kaby Lake R |
| Processor family: | 8th gen Intel Core i5 |
| Processor frequency: | 1.60 GHz |
| Processor boost frequency: | 3.40 GHz |
| Processor cache: | 6 MB |
| Thermal Design Power (TDP): | 15 W |
| Software ASUS ZenBook UX391UA-EA074R-OSS |
| Operating system installed: | Windows 10 Pro |
| Operating system architecture: | 64-bit |
| Display & Graphics ASUS ZenBook UX391UA-EA074R-OSS |
| Aspect ratio: | 16:9 |
| Display diagonal: | 13.3 inch |
| Display resolution: | 3840 x 2160 pixels |
| HD type: | 4K Ultra HD |
| LED backlight: | Yes |
| Touch technology: | Multi-touch |
| Touchscreen: | Capacitive |
| Discrete graphics adapter: | No |
| Discrete graphics adapter model: | Not available |
| Maximum on-board graphics adapter memory: | 32 GB |
| Number of displays supported: | 3 |
| On-board graphics adapter: | Yes |
| On-board graphics adapter base frequency: | 300 MHz |
| On-board graphics adapter DirectX version: | 12.0 |
| On-board graphics adapter dynamic frequency (max): | 1100 MHz |
| On-board graphics adapter model: | Intel UHD Graphics 620 |
| On-board graphics adapter OpenGL: | 4.4 |
| Memory ASUS ZenBook UX391UA-EA074R-OSS |
| Internal memory: | 8 GB |
| Maximum internal memory: | 8 GB |
| Memory clock speed: | 2133 MHz |
| Memory form factor: | On-board |
| Internal memory type: | LPDDR3-SDRAM |
| Storage ASUS ZenBook UX391UA-EA074R-OSS |
| SSD capacity: | 256 GB |
| SSD interface: | Serial ATA III |
| Storage media: | SSD |
| Total storage capacity: | 256 GB |
| Optical drive type: | No |
| Network & Communication ASUS ZenBook UX391UA-EA074R-OSS |
| 3G: | No |
| 4G: | No |
| Bluetooth: | Yes |
| Bluetooth version: | 4.2 |
| Ethernet LAN: | No |
| Wi-Fi: | Yes |
| Wi-Fi standards: | IEEE 802.11a, IEEE 802.11ac, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n |
| Interfaces/Ports ASUS ZenBook UX391UA-EA074R-OSS |
| Alienware graphics amplifier port: | No |
| CardBus PCMCIA slot type: | No |
| Combo headphone/mic port: | Yes |
| LAN/VGA combo port: | No |
| ExpressCard slot: | No |
| Line-in: | No |
| Microphone in: | No |
| S/PDIF out port: | No |
| SmartCard slot: | No |
| USB 3.0 (3.1 Gen 1) Type-C: | 1 |
| USB 3.1 (Gen 2) Type-C: | 2 |
| Input Devices ASUS ZenBook UX391UA-EA074R-OSS |
| Numeric keypad: | No |
| Pointing device: | Touchpad |
| Windows keys: | Yes |
| Audio ASUS ZenBook UX391UA-EA074R-OSS |
| Audio system: | SonicMaster |
| Number of speakers: | 2 |
| Built-in Devices ASUS ZenBook UX391UA-EA074R-OSS |
| Front camera: | Yes |
| Power ASUS ZenBook UX391UA-EA074R-OSS |
| AC adapter frequency: | 50/60 Hz |
| AC adapter input voltage: | 100 - 240 V |
| AC adapter output voltage: | 20 V |
| AC adapter power: | 65 W |
| Design ASUS ZenBook UX391UA-EA074R-OSS |
| Brand: | ASUS |
| Family: | ZenBook |
| Model name: | UX391UA-EA074R-OSS |
| Part Number: | UX391UA-EA074R-OSS |
| Product type: | Notebook |
| Form factor: | Clamshell |
| Product colour: | Blue |
| Depth: | 213 mm |
| Width: | 311 mm |
| Height: | 12.9 mm |
| Weight: | 1 kg |
| Release Date: | 2018-07-08 |
| Battery Information ASUS ZenBook UX391UA-EA074R-OSS |
| Battery capacity: | 50 Wh |
| Battery type: | Lithium Polymer (LiPo) |
| Battery life: | 13.5 h |
| Number of battery cells: | 4 |