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Rectangular E1.L enterprise SSD, silver metal casing, 9.5mm thick, gold edge connector visible

Solidigm

Solidigm D7-P5520 SSDPFWKX153T1N1 15.36TB E1.L 9.5mm PCIe 4.0 x4 enterprise SSD

SKU CH-ZCCA-ZDR5C MPN SSDPFWKX153T1N1

15.36TB E1.L 9.5mm PCIe 4.0 x4 enterprise SSD with 144L TLC 3D NAND, 7100 MBps read, 3700 MBps write, 1000000 IOPS random read and 28.0 PBW endurance

  • Total capacity15.36 TB
  • Sequential read speedUp to 7,100 MB/s
  • Sequential write speedUp to 3,700 MB/s
  • Interface typePCI-Express 4.0 x4
  • Form factorE1.L 9.5 mm
  • NAND flash type144L TLC 3D NAND
  • 36TB capacity supports massive datasets
  • 7100 MBps sequential read accelerates data access
  • 1,000,000 IOPS random read handles heavy workloads
  • 0 PBW endurance ensures long service life
  • E1.L 9.5mm form factor fits dense server chassis

Enterprise capacity for dense servers

The Solidigm D7-P5520 delivers 15.36TB in an E1.L 9.5mm module built for PCIe 4.0 x4 backplanes. It targets data-centre operators who need high-capacity flash in a slim, hot-pluggable form factor. The 144L TLC 3D NAND supports mixed read and write workloads typical of cloud storage and database tiers.

Thermals and power in rack use

Active power draw is rated at 20W with an idle state of 5W, so the drive fits standard E1.L thermal budgets without exotic cooling. Operating temperature spans 0°C to 70°C, matching typical inlet conditions in contained aisles. Vibration tolerance reaches 2.17 GRMS operating and 3.13 GRMS non-operating across the specified frequency bands.

Build quality and daily mounting

The 215g unit meets a 1,000 G shock rating at 0.5 msec, helping it survive insertion and transit events. A 2,000,000-hour MTBF and 28.0 PBW endurance rating reflect the write-heavy design point. The E1.L 9.5mm connector enables tool-less, single-slot installation in compatible cages, simplifying capacity expansion.

How it compares

Measured against everything we stock in Server & Data Center SSDs, at today’s prices. Recalculated every night.

Price $9,402.99
Pricier than about 90% of the 1,039 comparable items (median $992.99).
Total capacity 15.36 TB
Higher than about 90% of the 522 comparable items (median 3.2 TB).
Sequential read speed Up to 7,100 MB/s
Higher than about 80% of the 311 comparable items (median 6,500 MB/s).
Price per TB $612.17 per TB
Typical for this category: the median of 522 items is $595.64 per TB.

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Specifications

Product
Brand nameSolidigm
Model nameD7-P5520
Part numberSSDPFWKX153T1N1
Total capacity15.36 TB
Performance
Sequential read speedUp to 7,100 MB/s
Sequential write speedUp to 3,700 MB/s
Random read (4K)1,000,000 IOPS (4K Blocks)
Random write (4K)200,000 IOPS (4K Blocks)
Storage
NAND flash type144L TLC 3D NAND
Write endurance28.0 PBW
Ports & slots
Interface typePCI-Express 4.0 x4
Power
Idle power draw5 W
Active power draw20 W
Size & build
Form factorE1.L 9.5 mm
Product weight215g +/- 5g
Shipping weight0.17 kg
Package size140 × 110 × 17 mm
Environment & compliance
Operating temperature range0 °C to 70 °C
Max shock tolerance1,000 G (Max) at 0.5 msec
Vibration toleranceOperating 2.17 GRMS (5–700 Hz) Max
Non-Operating 3.13 GRMS (5–800 Hz) Max
More details
Mean time between failures2,000,000 h

Questions about this item

How do I install the E1.L 9.5mm drive in a PCIe 4.0 x4 server slot, and what step is often missed?

Slide the drive into the hot-plug E1.L bay until the connector seats fully, then secure the retention latch; the step often missed is confirming the latch clicks, otherwise the PCIe 4.0 x4 link will not train.

What maintenance or replacement will the 144L TLC 3D NAND need after heavy use?

The drive has a 28.0 PBW endurance rating; once that write budget is reached the NAND must be replaced, and no field maintenance is required before then.

What limit appears first under sustained write workloads on this 15.36TB drive?

The sequential write ceiling of 3700 MBps is reached before the 20W active power limit or the 70°C thermal ceiling under sustained loads.

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