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Black 21.5 inch all-in-one desktop with touchscreen display

Lenovo

Lenovo C40-05 All-in-One 21.5" AMD A6-6310 8GB DDR3 256GB SSD

SKU CH-GP25-HBC87

A 21.5-inch touchscreen all-in-one desktop with an AMD A6-6310 quad-core processor, 8GB DDR3 memory, 256GB SSD storage and Windows 10 Pro

  • Screen size21.5 in (54.6 cm)
  • ProcessorA6-Series APU
  • Memory size8 GB DDR3
  • Storage drive256 GB SSD
  • GraphicsAMD Radeon R5
  • CPUAMD A6 6310 / 1.8 GHz
  • 5" Full HD touchscreen for crisp, hands-on viewing
  • AMD A6-6310 quad-core up to 2.4 GHz for responsive everyday performance
  • 8 GB DDR3 memory keeps multitasking smooth
  • 256 GB SSD boots Windows 10 Pro fast and loads apps quickly
  • DVD-Writer plus Gigabit Ethernet, 802.11ac Wi-Fi and Bluetooth 4.0 for flexible connectivity

All-in-One for Home and Study

The Lenovo C40-05 is a 21.5 inch all-in-one desktop built for home office and student use. It runs Windows 10 Pro on an AMD A6-6310 quad-core processor clocked at 1.8 GHz with a boost up to 2.4 GHz. The system includes 8 GB of DDR3 memory and a 256 GB SSD for the operating system and files.

Touchscreen Display and Integrated Connectivity

The Full HD LED panel offers 1920 by 1080 resolution with ten-point touch input for direct screen interaction. A built-in DVD writer handles optical media, while Gigabit Ethernet, 802.11ac Wi-Fi and Bluetooth 4.0 provide wired and wireless networking. The 110 W power supply runs the entire unit without an external brick.

Entry-Level Graphics and Memory Limits

The discrete AMD Radeon R5 M230 with 2 GB video memory suits basic multimedia and light productivity but cannot drive modern 3D workloads. The 8 GB DDR3 configuration is not expandable beyond the installed capacity, limiting multitasking headroom. Buyers needing discrete GPU upgrades or higher memory ceilings should consider a tower platform.

How it compares

Measured against everything we stock in Tower & Compact Desktop PCs, at today’s prices. Recalculated every night.

Price $285.99
Cheaper than about 74% of the 14,711 comparable items (median $494.99).
Screen size 21.5 in (54.6 cm)
Lower than about 90% of the 2,278 comparable items (median 22 in).
Memory size 8 GB DDR3
Lower than about 80% of the 5,840 comparable items (median 16 GB).

Specifications

Product
Brand nameLenovo
Product lineC Series
Model nameC40-05
Product typeStudent / Home Office
Recommended useBusiness
Product colorBlack
Processor
ProcessorA6-Series APU
CPUAMD A6 6310 / 1.8 GHz
CPU modelAMD A6-6310
Processor cache2 MB L3 Cache
Memory
Memory size8 GB DDR3
RAM capacity8 GB DDR3
RAM type and speedDDR3 1600
Memory configuration8 GB x 1
Total memory slots2
Free memory slots0
Storage
Storage drive256 GB SSD
SSD storage256 GB
Hard driveNo
Disc driveDVD-Writer
Optical driveDVD±RW
Display
Screen size21.5 in (54.6 cm)
Touch inputYes
Type of screenMulti-Touch Screen
Display capabilities1920 × 1080
Graphics
GraphicsAMD Radeon R5
GPUAMD Radeon R5 M230
GPU interfaceAMD Radeon R5
Audio & video
SoundHigh Definition Audio
Connectivity
Wired networkGigabit Ethernet
Wireless adapter802.11a/b/g/n/ac
Wi-Fi802.11a/b/g/n Wireless LAN
Bluetooth support4.0
Ports & slots
Front USB ports1
Video connectors1 HDMI
Rear USB ports1 port
Power
Power supply110 W
Size & build
Form factorAll-in-One
Overall dimensions21.1 × 10 × 19.3
Product weight20.28 lb (9.2 kg)
In the box
Included monitorIncluded
Pointing deviceUSB Mouse
Software
Operating systemWindows 10 Pro
More details
Keyboard typeUSB Keyboard

Questions about this item

What does the 802.11ac wireless interface cap in practice?

The 802.11ac Wi-Fi supports up to gigabit-class throughput on a 5 GHz band, but real-world speed depends on router capability, channel width and local interference.

What physical space does the 21.5 inch all-in-one need on a desk?

The unit integrates the 1920 x 1080 touchscreen, mainboard and 110 W power supply in a single chassis, so only the footprint of the stand and clearance for rear ports are required.

How is Windows 10 Pro 64-bit installed on the 256 GB SSD, and what step do people miss?

The OS ships pre-installed and activated; the step users often skip is running Windows Update and Lenovo System Update immediately after first boot to install current drivers and security patches.

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