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NEC Express5800/A2000 Series

NEC’s Express5800/A2000 Series is an enterprise-class 4-socket 4U server based on the Intel® Xeon® Processor E7 v2 Product Family. The server represents a new generation of mission critical servers built specifically to support highly virtualized environments, heavy transactional workloads, and in-memory databases.

Extensive hardware redundancy and system monitoring minimizes the risk of a single point of failure. Open and affordable, the Express5800/A2000 Series server delivers a smaller footprint and better operational efficiency, and helps to reduce server sprawl.


Express5800/A2000 Series (A2040b, A2040b COPT, A2020b)

Form factor / height

4U rack

Number of Processors

A2040b: 2 to 4 (configurable), A2020b: 2 (fixed)


Intel® Xeon® Processor  E7-4890 v2 (2.8 GHz/15-core/37.5 MB)

Intel® Xeon® Processor  E7-4870 v2 (2.3 GHz/15-core/30 MB)

Intel® Xeon® Processor  E7-4860 v2 (2.6 GHz/12-core/30 MB)

Intel® Xeon® Processor  E7-4830 v2 (2.2 GHz/10-core/20 MB)

Intel® Xeon® Processor  E7-4820 v2 (2.0 GHz/8-core/16 MB)

Intel® Xeon® Processor  E7-4809 v2 (1.9 GHz/6-core/12 MB)

Intel® Xeon® Processor  E7-8891 v2 (3.2 GHz/10-core/37.5 MB)

Intel® Xeon® Processor  E7-8893 v2 (3.4 GHz/6-core/37.5 MB)

Memory Type

DDR3L-1600 Registered DIMM (8/16GB), DDR3L-1600 Load Reduced DIMM (32GB),
DDR3L-1066 Load Reduced DIMM (64GB *)

* 64GB DIMM is to be supported in 1H/2014

Memory Slots


Maximum memory


Storage type

Hot plug 2.5-inch SAS HDD, Hot-plug 2.5-iinch SAS SSD

Maximum internal drive bays


Maximum internal storage

HDD: 9.6TB, SSD: 3.2TB

Removable media

Internal or external drive (option)

Expansion slots

14x PCI Express 3.0 (x8 lane, x8 socket) (Low Profile, 167.6mm in length)

2x PCI Express 3.0 (x4 lane, x8 socket) (Low Profile, 167.6mm in length)

Video (VRAM)

Embedded in management controller chip (8MB)


2x Management LAN connector (1000BASE-T/100BASE-T/10BASE-T, RJ45, rear)


Up to 4 80 PLUS® Platinum certified power supply / Redundancy and  hot plug supported

Maximum power consumption (200V)

A2040b:2335VA / 2288Watt, A2020b:2208VA / 2164Watt


5x USB 2.0 (3x front, 1x rear, 1x internal), 1x VGA (front), 1x SUV (2x USB /1x VGA/1x Serial, rear)

Dimensions (W x D x H)

443.0 x 719.3 x 174.5 mm (4U rack height)

482.6 x 892.5 x 175.5 mm (including protruding objects and guide rails)

Maximum weight

A2040b:55kg, A2020b:55Kg

Temperature and humidity conditions (non-condensing)

Operating: 10 to 40 °C/ 50 to 104 °F , 20 to 80%
Non-operating: -10 to 55°C/14 to 131°F, 20 to 80%

Operating systems and virtualization software

Microsoft ® Windows Server®  2008 R2  (SP1 or later) Standard / Enterprise / Datacenter

Microsoft®  Windows Server®  2012 Standard / Datacenter

Red Hat® Enterprise Linux® 6.4 or later (x86_64)

Oracle® Linux 6.4 / UEK R2 or later (x86_64)

VMware® ESXi™ 5.1 Update 2

VMware® ESXi™ 5.5

The available models depend on sales regions. For details,  please contact your region’s sales representative.