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Rectangular silver E1.L 9.5mm enterprise SSD with label showing 15.36TB capacity

Solidigm

Solidigm D7-P5520 15.36TB E1.L 9.5mm PCIe 4.0 x4 enterprise SSD SSDPFWKX153T1OS

SKU CH-SW2Y-JDDVT MPN SSDPFWKX153T1OS

15.36 TB enterprise SSD in E1.L 9.5 mm form factor with PCIe 4.0 x4, 144L TLC 3D NAND, up to 7100 MB/s read, 3700 MB/s write, 1 000 000 random read IOPS, 200 000 random write IOPS.

  • Form FactorE1.L 9.5mm
  • Capacity15.36TB
  • Memory Components144L TLC 3D NAND
  • InterfacePCI-Express 4.0 x4
  • Max Sequential ReadUp to 7100 MBps
  • Max Sequential WriteUp to 3700 MBps
  • 36 TB capacity stores massive datasets
  • PCIe 4.0 x4 interface delivers up to 7100 MBps reads
  • 1 M random read IOPS accelerates transaction-heavy workloads
  • 0 PBW endurance supports sustained write traffic
  • 2 M-hour MTBF ensures long-term server reliability

Capacity and form factor

The Solidigm D7-P5520 delivers 15.36TB in the E1.L 9.5mm ruler form factor. It is built for dense server chassis that accept this specific length and thickness. Buyers needing a 2.5-inch U.2 or U.3 drive cannot use this model.

PCIe 4.0 x4 interface limits

The drive connects through a PCI-Express 4.0 x4 link, capping throughput at the lane speed of that generation. Systems limited to PCIe 3.0 will reduce sequential and random performance accordingly. Boards without an E1.L connector or without bifurcation for x4 lanes cannot host the drive.

Build quality and daily implications

The 144L TLC 3D NAND is rated for 28.0 PBW endurance with a 2,000,000-hour MTBF. Opal security encrypts data at rest without host software overhead. Idle power sits at 5W and active power at 20W, so thermal planning must account for sustained write workloads in a 0°C to 70°C operating range.

Highlights

  • 36 TB capacity stores massive datasets
  • PCIe 4.0 x4 interface delivers up to 7100 MBps reads
  • 1 M random read IOPS accelerates transaction-heavy workloads
  • 0 PBW endurance supports sustained write traffic
  • 2 M-hour MTBF ensures long-term server reliability

Specifications

BrandSolidigm
ModelD7-P5520
Part NumberSSDPFWKX153T1OS
Form FactorE1.L 9.5mm
Capacity15.36TB
Memory Components144L TLC 3D NAND
InterfacePCI-Express 4.0 x4
Max Sequential ReadUp to 7100 MBps
Max Sequential WriteUp to 3700 MBps
4KB Random Read1000000 IOPS (4K Blocks)
4KB Random Write200000 IOPS (4K Blocks)
Endurance28.0 PBW
MTBF2,000,000 hours
SecurityOpal
Power Consumption (Idle)5W
Power Consumption (Active)20W
Operating Temperature0°C ~ +70°C
Max Shock Resistance1,000 G (Max) at 0.5 msec
Max Vibration ResistanceOperating 2.17 GRMS (5 - 700 Hz) Max
Non-Operating 3.13 GRMS (5 - 800 Hz) Max
Weight215g +/- 5g
Shipping weight0.17 kg
Package size140 × 110 × 17 mm

Questions about this item

Should I pick the 15.36TB E1.L 9.5mm version or a smaller capacity for my server?

The 15.36TB model delivers 28.0 PBW endurance and 1,000,000 random read IOPS, making it suited for heavy read-intensive workloads where maximum capacity per drive bay matters.

What does the 7100 MBps sequential read figure mean once the drive is installed in a real system?

That 7100 MBps is the peak PCIe 4.0 x4 throughput; sustained speeds will depend on your controller, queue depth, and thermal conditions inside the chassis.

How does the PCIe 4.0 x4 interface limit performance in practice?

The x4 link caps theoretical bandwidth at roughly 8 GBps, so the drive's 7100 MBps read and 3700 MBps write ratings sit within that ceiling.

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