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Lenovo S4520 240GB 2.5 inch SATA enterprise SSD

Lenovo

Lenovo 4XB7A17072 S4520 240GB 2.5" SATA Enterprise SSD

SKU CH-VV40-V1VRX MPN 4XB7A17072

Read-intensive 2.5-inch SATA SSD for servers, 240 GB capacity with 470 MB/s reads and 2.5 DWPD endurance

  • InterfaceSATA 6.0Gb/s
  • Capacity240GB
  • Read-intensive endurance with 2.5 DWPD rating
  • 1024 TB total bytes written for long service life
  • 470 MB/s maximum read speed for fast data access
  • Hot-swappable 2.5" SATA design enables drive replacement without downtime
  • 144-layer 3D NAND TLC technology delivers cost-effective enterprise performance

Lenovo S4520 240GB SATA Enterprise SSD

The Lenovo S4520 is a 240GB 2.5-inch solid-state drive built for read-intensive server workloads. It connects via a SATA 6.0Gb/s interface and supports hot-swap installation in compatible bays. Designed for enterprise environments, it uses 144-layer Intel 3D NAND TLC flash memory to deliver consistent performance for boot, logging and caching tasks.

Upgrade from slower mechanical drives

Replacing 2.5-inch hard drives with this SSD removes mechanical latency and raises sustained read throughput to 470 MB/s. The jump is worth it when workloads demand higher random-read IOPS and lower power draw in a hot-swap chassis. It is not suited for write-heavy databases or mixed-use volumes that exceed its read-optimised endurance profile.

240GB capacity with 2.5 DWPD and 1024 TB TBW

The drive writes up to 600GB per day across its warrantied lifespan, totalling 1024 TB of data written. That headroom covers typical boot, web-tier and read-cache datasets with room to spare. Workloads that sustain heavy sequential writes or require larger active datasets will exhaust the endurance budget before the capacity limit becomes the constraint.

Highlights

  • Read-intensive endurance with 2.5 DWPD rating
  • 1024 TB total bytes written for long service life
  • 470 MB/s maximum read speed for fast data access
  • Hot-swappable 2.5" SATA design enables drive replacement without downtime
  • 144-layer 3D NAND TLC technology delivers cost-effective enterprise performance

Specifications

BrandLenovo
InterfaceSATA 6.0Gb/s
Capacity240GB
Shipping weight0.20 kg
Package size173 × 135 × 64 mm

Questions about this item

Will the 2.5" SATA 6.0Gb/s drive fit my server's hot-swap bay?

Yes, the 2.5-inch form factor matches standard hot-swap trays that accept SATA 6.0Gb/s SSDs; verify your chassis supports 2.5-inch SATA devices before ordering.

How do I install the S4520 240GB SSD and what step is often missed?

Slide the drive into the hot-swap bay until the connector seats firmly; the step often missed is ensuring the release lever clicks fully closed so the SATA 6.0Gb/s link trains at 6.0 Gb/s.

When will the 1024 TB TBW rating require drive replacement?

The 1024 TB total bytes written endurance rating covers the warranty period; replace the drive once SMART reports the media‑wear indicator reaches the 2.5 DWPD threshold.

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