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SilverStone Technology M2 to M Key PCI-E X4 Card ECM21

4.5 out of 5 stars 553 ratings

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ECM21
M.2 PCIE Card
Compatible devices PC
Specific uses for product Personal, gaming, business
Colour ECM21
Item dimensions LxWxH 12 x 10.4 x 2.3 centimetres
Brand SilverStone Technology
Item package quantity 1

About this item

  • 10 Gbps data-transfer speeds.
  • Future-proof reversible Type-C connector.
  • Popular Type-A connectors with USB 3.0/ 2.0 backward compatibility.

Product information

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Product description

SilverStone's ECM21 is an adapter designed for users wanting to utilize or add speedy M.2 devices such as SSD onto their existing PC or motherboard. ECM21 supports M.2 device (M key) to run via the super fast PCI-E interface for added storage potential. For users looking to have the fastest data access speed on a desktop computer, the ECM21 is a must have.


ECM20 ECM21 ECM22 ECM23 ECM24 ECM25
ECM20 ECM21 ECM22 ECM23 ECM24 ECM25
Motherboard Interface PCI Express X4 / SATA 6Gbps via third-party cable PCI Express x4 PCI Express X4 / SATA 6Gbps via third-party cable PCI Express x 4 via full size x 16 pinout PCI Express x 4 PCI Express x 4
M.2 Modules Supported SATA-based B key, PCI-E 4X-based M key PCI-E x4-based M key SATA-based B key, PCI-E 4X-based M key PCIe x 4 NVMe-based M key PCIe x 4 NVMe-based M key PCIe x 4 NVMe-based M key
Number of Drives Supported Two One Two One One One
Size of M.2 Drive Supported 30mm, 42mm, 60mm, 80mm 30mm, 42mm, 60mm, 80mm 30mm, 42mm, 60mm, 80mm, 110mm 30mm, 42mm, 60mm, 80mm 30mm, 42mm, 60mm, 80mm 30mm, 42mm, 60mm, 80mm
Dimensions N/A 120mm (W) x 23mm (H) x 104mm (D) 121mm (W) x 11mm (H) x 157.3mm (D) 105mm (W) x 11mm (H) x 44mm (D 121mm (W) x 20mm (H) x 130mm (D) 32mm (W) x 6mm (H) x 100mm (D)
SDP11 SSDP12
SDP11 SDP12
Motherboard Interface 7-Pin SATA connector x 4 7-Pin SATA connector x 2, 36-Pin SFF-8643 connector x 1 (U.2)
M.2 Modules Supported 4x SATA-based B key 2x SATA, 1 x PCIe NVMe
Number of Drives Supported Four Three
Size of M.2 Drive Supported 42mm, 60mm, 80mm, 120mm 42mm, 60mm, 80mm, 120mm
Dimensions 101.6 mm (W) x 25.4 mm (H) x 146 mm (D) 101.6 mm (W) x 25.4 mm (H) x 146 mm (D)

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4.5 out of 5 stars
4.5 out of 5
553 global ratings

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Top reviews from Singapore

Reviewed in Singapore 🇸🇬 on 5 December 2020
Colour: ECM21Style: M.2 PCIE CardVerified Purchase
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5.0 out of 5 stars It Works
By Krado on 5 December 2020
"Converts M.2 port (M key) into one PCI-E x4 interface"
- Yes, it does.

"Includes optional low-profile expansion slot"
- Handy, for I have a spare slim HTPC case which I might use this for in the future.

"No driver installation required"
- Yup, none.

I bought this because I have a spare NVMe drive and an Athlon 3000G system. As you may know, the processor only supports up to a max of 6 PCI-e lanes in a x4 + x2 configuration. The Gigabyte B450M-DS3H only has one M.2 slot and I only had 4 solutions:

1) Buy a Ryzen w/ Radeon processor: $200+
2) Buy a new mainboard with a secondary M.2 slot controlled via the chipset: $120+
3) Buy a M.2 SATA SSD: $60+
4) This Silverstone adapter: $10!

The red LED indicates power while the green LED indicates SSD activity. Retro PC-loving me prefers them to be wired in reverse.
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Reviewed in Singapore 🇸🇬 on 6 March 2020
Colour: TP01-M2Style: M.2 HeatsinkVerified Purchase
One person found this helpful
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Reviewed in Singapore 🇸🇬 on 31 October 2020
Colour: ECM22Style: M.2 PCIE CardVerified Purchase
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5.0 out of 5 stars Plug and play
By Joseph Lim on 31 October 2020
Previously I was using a NVME ssd and SATA ssd in separate enclosures, but they took up USB ports and I also think the transfer speeds were bottlenecked. This item seemed to be a good solution. After mounting the adapter and connecting the SATA cable, my PC was able to read the 2 drives. Very happy with this purchase, and it also comes with 2 thermal pads and a slot adapter for smaller PC cases. I am using a MSI B450M mobo.
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Reviewed in Singapore 🇸🇬 on 30 December 2020
Colour: ECM21Style: M.2 PCIE CardVerified Purchase

Top reviews from other countries

Fuji
5.0 out of 5 stars Its does work actually!
Reviewed in the United Kingdom 🇬🇧 on 20 July 2019
Colour: TP02-M2Style: M.2 HeatsinkVerified Purchase
One person found this helpful
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W. Angelo
5.0 out of 5 stars What you need for an M.2 drive
Reviewed in the United Kingdom 🇬🇧 on 4 July 2019
Colour: TP02-M2Style: M.2 HeatsinkVerified Purchase
Adrian wright
5.0 out of 5 stars The best way to keep your M.2 drive nice and cool.
Reviewed in the United Kingdom 🇬🇧 on 27 October 2019
Colour: TP02-M2Style: M.2 HeatsinkVerified Purchase
onyx.online
5.0 out of 5 stars Works great simple to install
Reviewed in the United Kingdom 🇬🇧 on 9 February 2020
Colour: TP02-M2Style: M.2 HeatsinkVerified Purchase
Joe
5.0 out of 5 stars Works perfectly with no performance drops.
Reviewed in the United Kingdom 🇬🇧 on 27 March 2017
Colour: ECM20Style: M.2 PCIE CardVerified Purchase