The ThinkSystem S4520 Read Intensive SATA SSDs are advanced 6Gb SATA solid-state drives that use 144-layer Intel 3D NAND TLC Flash Memory technology to provide an affordable solution with industry leading performance.

This product guide provides essential presales information to understand the S4520 SSDs, their key features and specifications, components and options, and configuration guidelines. This guide is intended for technical specialists, sales specialists, sales engineers, IT architects, and other IT professionals who want to learn more about S4520 SSDs and consider their use in IT solutions.

Specification

Product
Product id	974539
Brand	Lenovo
Partnr	4XB7A77058
EAN/UPC code	889488590506
Certificates
Certification	FCC Title 47, Part 15B, Class B EN-55035:2017 EN-55022:2006 EN-55032:2012 Low Voltage Directive (LVD) 2014/35/EU EMC Directive 2014/30/EU RoHS Directive 2011/65/EU WEEE Directive 2012/19/EU UL 60950-1, 2nd Edition, 2014-10-14 CSA C22.2 No. 60950-1-07, 2nd Edition, 2014-010 UL/CSA 62368-1, 2nd Edition AS/NZ CISPR 32:2015 AS/NZ CISPR 22:2009 +A1:2010 Taiwan BSMI EMC standard CNS 13438 Korea KCC Article 11.1 Morocco Decree # 2574-14 (EMC) Canada ICES-003 Japan VCCI China EFUP
Features
SSD form factor	3.5"
SSD capacity	960 GB
Interface	Serial ATA III
Memory type	TLC 3D NAND
Component for	Server
Data transfer rate	6 Gbit/s
Random read (4KB)	90000 IOPS
Random write (4KB)	43000 IOPS
Random latency - read (up to)	102 µs
Sequential latency - read (up to)	36 µs
Random latency - write (up to)	49 µs
Sequential latency - write (up to)	36 µs
Uncorrectable Bit Error Rate (UBER)	< 1 per 10^17 bits read
Mean time between failures (MTBF)	2000000 uur
Drive writes per day (DWPD)	3
Power
Power consumption (write)	3 W
Operational conditions
Operating temperature (T-T)	0 - 70 °C
Storage relative humidity (H-H)	5 - 95 procent
Operating vibration	2.17 G
Non-operating vibration	3.13 G
Operating shock	1000 G
Non-operating shock	1000 G
Weight & dimensions
Width	174 mm
Depth	133 mm
Height	63 mm
Weight	434 g
Other features
Endurance rating	5.3 PB