Help Center/ Elastic Cloud Server/ Service Overview/ ECS Types and Specifications/ x86 ECS Specifications/ FlexusX Instances
Updated on 2026-04-14 GMT+08:00
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FlexusX Instances

Overview of FlexusX Instances

Flexus X Instance (FlexusX) is a next-generation flexible compute service designed for small- and medium-sized enterprises (SMEs) and developers. It is a good choice for medium and light workloads, such as e-commerce livestreaming, enterprise website setup, development and testing environments, game servers, and audio and video services.

Hyper-threading is enabled for FlexusX instances by default. Each vCPU is a thread of a CPU core.

For details about the OSs supported by this type of ECSs, see OSs Supported by Different Types of ECSs.

Available now: X1

Table 1 General computing instance features

Series

Compute

Disk Type

Network

X1
  • vCPU to memory ratio: user-defined
  • Number of vCPUs: 1 to 16
  • 3rd Generation Intel® Xeon® Scalable Processor
  • Basic/Turbo frequency: 2.8 GHz/3.5 GHz
  • High I/O
  • General Purpose SSD
  • Ultra-high I/O
  • Extreme SSD
  • General Purpose SSD V2
  • An instance with higher specifications has better network performance.
  • Maximum packets per second (PPS): 1,000,000
  • Maximum intranet bandwidth: 12 Gbit/s
  • Maximum number of network connections: 1,000,000

General Computing X1

Overview

General computing X1 refers to FlexusX instances in ECS.

Scenarios

Low- and medium-load applications, e-commerce going global, enterprise website setup, development and test environments, and applet backends

Specifications

FlexusX supports a wide range of custom specifications for you to choose from. The following table lists the specifications supported by X1 instances.
Table 2 X1 instance specifications

Series

vCPUs

Max./Assured Network Bandwidth

(Gbit/s)

Max. Network PPS

(10,000)

Network Connections

(10,000)

Max. NIC Queues

Max. NICs

Max. Supplementary NICs

Virtualization

x1

1

1/0.1

15

50

2

2

4

KVM

x1

2

2/0.2

30

50

2

2

8

KVM

x1

3

2/0.2

30

50

2

2

8

KVM

x1

4

3/0.4

50

50

2

2

16

KVM

x1

5

3/0.4

50

50

2

2

16

KVM

x1

6

4/0.6

60

50

2

2

24

KVM

x1

7

4/0.6

60

50

2

2

24

KVM

x1

8

6/0.8

80

100

2

2

32

KVM

x1

9

6/0.8

80

100

2

2

32

KVM

x1

12

8/1.2

90

100

4

3

48

KVM

x1

16

12/1.6

100

100

4

3

64

KVM
Parent topic: x86 ECS Specifications