Design
Device class	Small & Medium Business
Chassis type	Rack (2U)
Product colour	Black
LED indicators
Built-in display
Operational conditions
Operating temperature (T-T)	10 - 40 °C
Operating relative humidity (H-H)	8 - 90%
Storage temperature (T-T)	-10 - 50 °C
Storage relative humidity (H-H)	10 - 90%
Operating altitude	0 - 3050 m
Performance
Maximum number of controllers supported	2
Cache size (max)	128 GB
Maximum number of hosts supported	512
Ports & interfaces
Host ports	12
Serial interface type	RJ-45, USB C
RJ-45 ports quantity	1
Power
Power supply unit (PSU) capacity	913 W
AC input voltage	100 - 240 V
Redundant power supply (RPS) support
Hot-swap PSU
Storage
Supported storage drive types	SSD
Number of storage drives supported	24
Supported storage drive interfaces	SAS
Storage drive sizes supported	2.5"
RAID levels	0, 1, 5, 6, 10
Data transfer rate	12 Gbit/s
Hot-swap drive bays
Weight & dimensions
Width	449 mm
Depth	553 mm
Height	85 mm
Weight	25.1 kg

The Lenovo ThinkSystem DE4800F 2U24 SFF is a NAS server of the device class Small & Medium Enterprise, specifically designed as a Hybrid Flash Array for high-performance storage requirements. The device features a rack (2U) housing in black and is intended for use in server rooms or data centers. It supports up to 24 SSD storage drives in the 6,3 cm ( 2,5 inch ) format, connected via the SAS interface. The maximum data transfer rate is 12 Gbit/s, enabling fast and reliable data transfer between drives and hosts. The RAID levels 0, 1, 5, 6 and 10 offer flexible configuration options for performance, fault tolerance, and data protection. The hot-swappable drive bays allow continuous availability of storage resources without interrupting operations.

Applications

The ThinkSystem DE4800F is designed for enterprises requiring a scalable, high-performance, and secure storage solution. It is particularly suitable for applications with high I/O demands, such as databases, virtualization environments, or backup systems. Support for up to 512 hosts makes it a central storage resource in medium to large networks. The device class Small & Medium Enterprise indicates that the system is tailored to the needs of this target group, without sacrificing enterprise functions such as High Availability or enterprise-class Storage Management.

Features and Equipment in Detail

The device features 12 host connections, enabling flexible connectivity to various servers or networks. The serial interface includes an RJ-45 port and a USB C port, simplifying configuration and maintenance. An integrated display and LED indicators support operation and status monitoring directly on the device. The maximum cache size is 128 GB, reducing access times for frequently used data and improving overall system performance. The maximum number of controllers is 2, enabling redundant configuration and higher availability.

Technology Explained Simply

The use of SSD storage drives in the 6,3 cm ( 2,5 inch ) format offers a combination of high speed, low heat generation, and compact design. The SAS interface ensures reliable and fast connections between drives and the controller. The data transfer rate of 12 Gbit/s corresponds to the SAS-3 standard interface and enables high bandwidth for parallel data access. The hot-swap function of the drive bays means drives can be replaced during operation without interrupting system operation. This is especially important for critical applications requiring high availability.

Compatibility and Accessories

The system is designed for use with SSD drives supporting the SAS interface. The host connections are compatible with standard network and storage protocols, enabling integration into existing IT infrastructures. Support for redundant power supplies and hot-swap power supplies increases system reliability. The AC input voltage of 100 - 240 V allows operation in various countries without additional adjustments.

Mounting and Installation

The device is designed as a rack (2U) system and can be mounted in standard 19-inch racks. Dimensions are 449 mm (width) × 553 mm (depth) × 85 mm (height), and weight is 25.1 kg. Mounting is done via integrated rails, ensuring secure fixation in the rack. Installation requires no special tools, as the bays are designed for hot-swap replacement.

Operational Advantages

The combination of SSD technology, high cache size, and RAID support ensures high I/O performance and short access times. The hot-swap function of the drives and redundant power supply increase availability and reduce downtime. Support for up to 512 hosts makes the system a central storage resource in complex networks. The operating temperature of 10 - 40 °C and relative humidity of 8 - 90% during operation demonstrate the device's robustness in typical server environments. The storage temperature of -10 - 50 °C and storage humidity of 10 - 90% allow safe storage under various conditions. The operating altitude of 0 - 3050 m makes the device suitable for locations at higher elevations.

Power Supply

The power supply unit has a capacity of 913 W and supports redundant power supplies as well as hot-swap power supplies. The AC input voltage of 100 - 240 V enables operation in various regions. The hot-swap function of the power supply unit allows replacement of a faulty power supply without interrupting operation.

Operating Conditions

The device is designed for operation in environments where the temperature ranges from 10 to 40 °C and relative humidity is between 8 and 90%. For storage, temperatures from -10 to 50 °C and humidity from 10 to 90% are permissible. The maximum operating altitude is 3050 m, enabling use at higher elevations.

Design and Display

The housing is black and conforms to standard rack system design. The LED indicators and integrated display enable visual monitoring of system status. The serial interface with RJ-45 and USB C simplifies configuration and maintenance.