Issue #632: Add Cytron MakerDisk 2242 M-Key NVMe SSD.

_cards_m2/cytron-makerdisk-nvme-2242-m-key-ssd.md

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+---
+layout: card
+title: "Cytron MakerDisk SSD NVMe 2242 M-key M.2"
+picture: "/images/m2-cytron-makerdisk-nvme-2242-m-key-ssd.jpeg"
+functionality_cm4: "Full"
+functionality_pi5: "Full"
+driver_required: "No"
+github_issue: "https://github.com/geerlingguy/raspberry-pi-pcie-devices/issues/632"
+buy_link: https://www.cytron.io/p-nvme-2242-b-plus-m-key-makerdisk-ssd-128gb-preloaded-rpi-os
+videos: []
+---
+Cytron sells an [NVMe 2242 M-Key MakerDisk SSD](https://www.cytron.io/p-nvme-2242-b-plus-m-key-makerdisk-ssd-128gb-preloaded-rpi-os) in 128, 256, and 512 GB sizes.
+
+It comes pre-loaded with Raspberry Pi OS for ease of use with a new Raspberry Pi 5, and works with up to PCIe Gen 3 x2, with up to 1.7 GB/sec read and 600 MB/sec write speeds.
+
+## Benchmark Results
+
+Tested on 2024-05-13 on a Raspberry Pi 5 at PCIe Gen 3 speeds:
+
+| Benchmark                  | Result |
+| -------------------------- | ------ |
+| iozone 4K random read      | 61.03 MB/s |
+| iozone 4K random write     | 263.89 MB/s |
+| iozone 1M random read      | 812.04 MB/s |
+| iozone 1M random write     | 750.21 MB/s |
+| iozone 1M sequential read  | 812.90 MB/s |
+| iozone 1M sequential write | 745.03 MB/s |