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Green M.2 2280 circuit board with black chips and gold edge connector

Intel

Intel 545s M.2 2280 512GB SATA internal SSD SSDSCKKW512G8X1

SKU CH-K0NM-8AS94 MPN SSDSCKKW512G8X1

A M.2 2280 SATA solid-state drive with 512 GB capacity, 64-layer 3D NAND TLC, up to 550 MBps read and 500 MBps write speeds, and AES 256-bit encryption

  • Total capacity512 GB
  • Sequential read speedUp to 550 MB/s
  • Sequential write speedUp to 500 MB/s
  • Interface typeSATA III
  • Form factorM.2 2280
  • Product typeInternal Solid State Drive (SSD)
  • Faster boot and app loads with sequential read up to 550 MBps
  • Smoother multitasking from random read up to 75,000 IOPS
  • Data protected by AES 256-bit self-encryption
  • Long service life rated at 1,600,000 hours MTBF
  • Low idle draw of 40 mW extends battery runtime

512 GB M.2 SATA SSD for everyday PCs

The Intel 545s Series SSDSCKKW512G8X1 is a 512 GB internal solid state drive built for consumer laptops and desktops. It uses 64-layer 3D NAND TLC memory and a SATA III interface to deliver up to 550 MBps sequential read and up to 500 MBps sequential write speeds. Random performance reaches up to 75000 IOPS read and up to 85000 IOPS write, with read latency of 50 µs and write latency of 60 µs. The drive draws 40 mW idle and 4.5 W active across an operating range of 0°C to +70°C.

SATA III interface limits and benefits

The SATA III link caps throughput at 6 Gbps, so the drive cannot exceed the quoted sequential figures regardless of the host controller. Random workloads are bounded by the 4 KB IOPS ratings and the 50 µs/60 µs latencies. Power consumption stays low at 40 mW idle, helping battery life in mobile systems. Endurance is backed by a 1600000 hour MTBF and a shock rating of 1500G at 0.5 msec. AES 256-bit self-encryption is supported for data security.

Simple drop-in installation for SATA M.2 slots

The M.2 2280 form factor fits standard SATA-keyed slots in most laptops and desktops. Installation requires inserting the module at an angle and securing it with a single screw; no cables or brackets are needed. Common issues arise when the slot is wired only for PCIe signalling, which this SATA drive does not support. Verify the platform documentation lists SATA M.2 support before purchase. Ensure the firmware is current and the BIOS is set to AHCI mode for best compatibility.

How it compares

Measured against everything we stock in Internal NVMe & SATA SSDs, at today’s prices. Recalculated every night.

Price $57.99
Cheaper than about 88% of the 1,994 comparable items (median $180.49).
Total capacity 512 GB
Lower than about 60% of the 1,368 comparable items (median 1 TB).
Sequential read speed Up to 550 MB/s
Lower than about 70% of the 1,180 comparable items (median 2,400 MB/s).
Price per TB $113.26 per TB
Cheaper than about 78% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameIntel
Product line545s Series
Model nameSSDSCKKW512G8 × 1
Total capacity512 GB
Product typeInternal Solid State Drive (SSD)
Intended useConsumer
Performance
Sequential read speedUp to 550 MB/s
Sequential write speedUp to 500 MB/s
Random read (4K)Up to 75,000 IOPS
Random write (4K)Up to 85,000 IOPS
Read latency50 µs
Write latency60 µs
Storage
NAND flash type64-Layer 3D NAND TLC
Ports & slots
Interface typeSATA III
Power
Idle power draw40 mW
Active power draw4.5 W
Size & build
Form factorM.2 2280
Overall width22 mm
Product depth80 mm
Product weight6g
Shipping weight0.08 kg
Package size127 × 99 × 20 mm
Environment & compliance
Operating temperature range0 °C to 70 °C
Max shock tolerance1500G (Max) at 0.5 msec
Vibration toleranceOperating: 2.17 GRMS (5-700 Hz)
Non-Operating: 3.13 GRMS (5-800 Hz)
More details
Mean time between failures1,600,000 h

Questions about this item

Should I pick the 128GB, 256GB or 512GB version of the 545s?

The 512GB model shown here gives you the most room for OS, apps and media; the 256GB and 128GB variants use the same SATA III interface and 64-layer 3D NAND but provide less capacity.

What does the 550 MBps sequential read figure mean once the drive is installed?

It is the maximum sustained read speed the controller can deliver over SATA III; real-world boot and file-open times will be lower but still far quicker than a mechanical hard drive.

The drive uses an M.2 2280 slot — does that mean it runs on PCIe?

No, this 545s uses the SATA III protocol through the M.2 2280 connector, so it is limited to the SATA III bandwidth ceiling of 6 Gbps.

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