Exascend SE4 2.5″ SATA Enterprise SSD for QNAP – 7.68TB

Exascend SE4 2.5″ SATA Enterprise SSD for QNAP – 7.68TB

A high-capacity, enterprise-grade 2.5″ SATA-III SSD offering 7.68 TB of storage, optimized for NAS, servers, and data-center applications. It delivers strong sustained performance (up to ~555 MB/s read, ~530 MB/s write), reliable 4K random I/O (~96,000 IOPS read), and enterprise-level endurance with advanced error correction, wear-leveling, and power-loss protection — ideal for heavy workloads, caching, and storage-dense deployments.

Key Specifications

• Interface: SATA-III (6.0 Gb/s)

• Form Factor: 2.5″ (7 mm)

• Capacity: 7.68 TB (other SE4 variants range 240 GB – 15.36 TB)

• Flash Type: 3D TLC NAND (with DRAM)

• Max Sequential Read: up to 555 MB/s (some editions quoted up to 560 MB/s)

• Max Sequential Write: up to 530 MB/s (some editions quoted up to 535 MB/s)

• 4K Random Read (IOPS): ~96,000 IOPS

• 4K Random Write (IOPS): ~18,000 – 46,000 IOPS (depending on “edition”)

• Typical Latency (7.68 TB version): ~110 µs (read), ~40 µs (write) under steady-state workloads

• Power Consumption: Active < 2.6–2.8 W; Idle < 0.8–0.9 W

• Operating Temperature: 0 °C to 70 °C

• Storage Temperature: –40 °C to 85 °C

• Vibration (Operating): 10 G (peak, 10–2000 Hz)

• Shock (Operating): 50 G (11 ms half-sine)

• Shock (Non-Operating): 1500 G (0.5 ms half-sine)

• MTBF (Mean Time Between Failures): 2,000,000 hours

• Endurance (TBW / DWPD): Depending on edition — for SE4 the 5-year DWPD is ~0.6 (for some configs) or up to 1 (for other configs)

• Data Protection / Reliability Features: LDPC error correction, firmware + hardware power-loss protection, wear-leveling, optional encryption (TCG Opal 2.01 / AES-256)

Key Advantages

• High capacity in a compact form-factor — At 7.68 TB (and with the series scaling up to 15.36 TB) the SE4 lets you pack a lot of storage into a standard 2.5″ (7 mm) slot, excellent for dense NAS pools or multi-drive storage arrays.

• Consistent, reliable performance — With sustained sequential read/write up to ~560/535 MB/s and strong IOPS/latency for random reads/writes, it delivers much better responsiveness than HDDs or many consumer-grade SSDs, especially under heavy or mixed workloads.

• Enterprise-class reliability & durability — Built for intensive workloads and long-term use: advanced error correction (ECC/LDPC), wear-leveling, power-loss protection (PLP), and overall design to handle 24/7 operation

• Energy-efficient & thermally efficient — Compared to spinning disks, it uses less power (low active/idle power draw) and generates less heat, which is beneficial especially in multi-drive NAS enclosures or server racks.

• Better reliability than HDDs in many respects — Because SSDs have no moving parts, they’re much less prone to mechanical failures, vibration/shock issues, or the wear-over-time problems that HDDs face.

• Broad compatibility & deployment flexibility — The standard 2.5″ SATA-III form factor means it’s compatible with most NAS units, servers and legacy systems — no need for special NVMe slots or adapters.

• Enterprise-class reliability and endurance: 176-layer 3D TLC NAND with advanced error correction, wear-leveling, hardware power-loss protection, MTBF ~2 million hours, built for sustained, heavy workloads.

• Low power draw — efficient enough for multi-drive setups while minimizing heat and power consumption.

Recommended Use Cases

• NAS / Home‐Server for Media / File Storage with Performance Needs
  If you run a NAS for media streaming, file sharing, backups or general file storage — and you occasionally access or edit large files (e.g. video editing, photo libraries) — this SSD gives you much faster access, lower latency and better responsiveness than traditional HDDs.

• Running Virtual Machines (VMs) or Containers on NAS / Server
  For virtualization tasks, hosting VMs or container workloads on a NAS server often requires high IOPS and low latency. An enterprise-grade SATA SSD like this makes boot-up, OS responsiveness, and VM disk I/O much faster and more stable than HDD-based storage.

• Database Storage / Applications with Frequent Random I/O
  If you’re running databases, web applications, or other services that perform many small reads/writes or random I/O — the SSD’s fast response and consistent performance help ensure the application remains responsive and stable.

• SSD Caching or Tiered Storage in Hybrid HDD/SSD NAS Setups
  In a NAS configured with mostly HDDs for bulk storage, this SSD can serve as a caching tier (or “hot data” tier) — storing frequently accessed data or OS/apps — which speeds up access significantly while keeping overall storage costs and capacity high.

• Workstations / Servers Requiring High Reliability, Low Noise & Low Power
  Because SSDs (unlike HDDs) have no moving parts — they draw less power, generate less heat and noise — this SSD suits always-on servers/NAS or home-servers in noise-sensitive environments.

• Mixed Workload Environments: Media + Virtualization + Databases
  If you have a setup combining several tasks — e.g. media storage/streaming, VM hosting, occasional heavy I/O — using this SSD allows you to handle mixed workloads more reliably and efficiently than HDDs, with better endurance and performance consistency.

✅ What Makes It Especially Suitable in Those Scenarios

• Enterprise-grade reliability and endurance — good for 24/7 operations, frequent read/write cycles, and heavy usage

• Fast read/write speeds and high random I/O performance — ideal for workloads sensitive to latency or needing many I/O operations per second (e.g. VMs, databases).

• Lower power consumption, less heat and silence — beneficial for home-server or always-on NAS use.

• Flexibility: can be used as primary storage, cache, or part of a tiered storage architecture depending on your needs.