Product Technical Specification Sheet

1. Product Identification

• Brand Name: Dell

• Original Equipment Manufacturer (OEM): Intel Corporation

• Intel Base Series: Intel® SSD DC S3520 Series (Enterprise Data Center Cloud Line)

• Intel Model Number (MPN): SSDSCKJB240G7R / SSDSCKJB240G7

• Dell Part Number (DP/N): 0919J9 / 919J9

• Project Code Name: Downieville

• Application Target: Primary Boot Device optimized for Dell EMC BOSS-S1 (Boot Optimized Server Storage) PCIe Controller Cards deployed in PowerEdge Servers.

2. Core Architectural Specifications

• Form Factor: M.2 2280 (22mm x 80mm structural profile)

• Formatted Capacity: 240 GB

• Connector Interface Key: B+M Key

• Bus Interface Protocol: SATA III 6.0 Gbps (Backward compatible with 3.0 Gbps host controllers)

• NAND Flash Technology: Intel 16nm 3D MLC (Multi-Level Cell) NAND Matrix

• Workload Optimization: Read-Intensive (RI) / Enterprise Server OS Booting

3. Performance & Throughput Profiles

Optimized for steady-state enterprise boot environments, ensuring predictable read latencies and continuous operating system stability:

Performance Metric	Rated Specification
Sustained Sequential Read (128KB)	Up to 320 MB/s (Typical range 295 – 320 MB/s)
Sustained Sequential Write (128KB)	Up to 260 MB/s (Typical range 250 – 260 MB/s)
Random Read Throughput (4KiB, Max)	Up to 50,000 IOPS
Random Write Throughput (4KiB, Max)	Up to 14,400 IOPS
Latency Profile (Read / Write Typical)	42 µs / 52 µs

4. Endurance, Reliability & Data Integrity

Enterprise Endurance Metrics

• Total Bytes Written (TBW): ~600 TB (Terabytes Written)

• Drive Writes Per Day (DWPD): ~1.37 DWPD over a standard 5-year deployment lifecycle.

Corporate Reliability Standards

• MTBF (Mean Time Between Failures): 2.0 Million Hours

• UBER (Uncorrectable Bit Error Rate): Less than 1 sector error per $10^{17}$ bits read

• Operating Availability: 24/7/365 continuous deployment under enterprise-scale database and OS logging routines.

• Hardware Protection Features: On-chip End-to-End Data Protection scheme with CRC block verification to counteract hidden or silent storage array bit degradation.

5. Physical, Electrical & Environmental Parameters

Physical Dimensions

• Width x Length Profile: 22.00 mm x 80.00 mm

• Z-Height Profile: Standard double-sided M.2 configuration (~3.58 mm)

• Unit Weight: < 10 grams

Electrical Load Profiles

• Operating Voltage Requirement: $+3.3\text{VDC} \pm 5\%$

• Active Power Consumption (Operating Max): ~3.5 Watts

• Idle State Power Consumption: ~0.6 Watts

Environmental Limits

• Operating Temperature Range: 0°C to 70°C (Internal sensor tracking)

• Non-Operating Storage Range: -55°C to 95°C

• Operating Shock Limit: 1,000 G for 0.5 ms