CARDSPEED - Card Readers and Memory Cards

Controller Manufacturers and Controllers

This is a list of manufacturers of USB 2.0 flash card reader controllers. The list is based on controllers from card readers I have tested so far, and some research on the Internet. This list does not claim to be complete or correct.

In general, card readers show up with the Vendor-ID [VID] and Product-ID [PID] of the flash card reader controller. But it looks like especially US companies tend to use their own manufacturer and product ID.

If you want to know more about your USB card reader, see:  How to get the USB ID on Windows XP or Mac OS .

Currently identified as Top Performers are...

Genesys Logic GL826		Multi-LUN Multi-Card, Dual Channel SD or PRO-HG 8bit		UDMA-CF, MS PRO-HG
USBest UT335-LF		Multi-LUN Multi-Card, Single Channel SD Interface		UDMA-CF
USBest UT330-LF		Multi-LUN Multi-Card, Dual Channel SD Interface		UDMA-CF
Realtek RTS5151		Multi-LUN Multi-Card		UDMA-CF
Realtek RTS5158		Single-LUN Multi-Card		UDMA-CF
Realtek RTS5161		Multi-LUN Multi-Card		UDMA-CF, SIM Card, Smart Card
OnSpec Inc. xSil 251		Single-LUN UDMA CF		UDMA-CF
Previous Generations
Alcor Micro AU6375 / AU6377		Multi-LUN Multi-Card, Single / Dual Channel SD Interface
Alcor Micro AU6366 / AU6371		Single-LUN Multi-Card
Alcor Micro AU6333		Single/Dual LUN SD/MMC/MS
Genesys Logic GL819		Multi-LUN Multi-Card
Silicon Motion SM331		SDHC/SD / MMCplus 8-bit

Special note: The Alcor Micro AU6331/6332 (single-slot) and Alcor Micro AU6368 (multi) are most likely the slowest currently used controllers.

 » Alcor Micro Corp.   [VID 058F]

AU6331 (SSOP 28) [PID 6331/6332] - USB2.0 SD/MMC Single LUN Card Reader Controller

SD, HS-SD, MMC, HS-MMC

AU6331 (LQFP 48) [PID 6331/6332] - USB2.0 SD/MMC/MS Single/Dual LUN Card Reader Controller

SD, HS-SD, MMC, HS-MMC, MS, MS PRO

AU6332 (SSOP 28) [PID 6335] - USB2.0 SD/?? Card Reader Controller

no details available at the moment

AU6333 (LQFP 48) [PID 6331/6332] - USB2.0 SD/MMC/MS Single/Dual LUN Card Reader Controller

SD 1.1, MMC 4.0 8-bit, MS Pro 4-bit

AU6336 (SSOP28/QFN24) [PID 6335] - USB2.0 SD/MMC Single LUN Card Reader Controller

SD 2.0, MS PRO (4bit)

AU6337-GBL (LQFP48) - USB2.0 SD/MMC/MS Single/Dual LUN Card Reader controller

SD 2.0, MMC 4.2 (8bit), MS PRO (4bit)

AU6362 (LQFP 100) [PID 6362] - USB 2.0 9-in-1 Flash Memory Card Reader Controller

CF (8-bit), MD, SM/xD (8-bit), SD (4-bit), MMC, MS, MS Pro (4-bit), MS Duo

AU6366 (LQFP 48) [PID 6366] - USB 2.0 Single-LUN for Multiple Flash Card Reader Controller

CF 3.0 16-bit IDE, SD 1.1, MMC 4.0 8-bit, MS PRO 4-bit, xD 1.2

AU6367 (LQFP 64) - USB2.0 SD/MMC Flash Card Reader with UFD Controller

SD 1.1, MMC 4.0 8-bit

AU6368 (LQFP 80) [PID 6362/6369] - AU6368 USB2.0 Multiple Slots Flash Memory Card Reader

CF/MD (8-bit), SD (4-bit), MMC, MS, MS PRO (4-bit), MS ROM, MS Duo, xD/SM (8-bit)

AU6369 (LQFP 48) [PID 6369] - USB2.0 Single-Slot SD/MMC/MS Flash Memory Card Reader Controller

SD (4-bit), MMC, MS, MS PRO (4-bit), MS ROM, MS Duo

AU6369 (LQFP 64) - USB 2.0 Single-Slot CF / SD/MS/xD / xD/SM Flash Memory Card Reader

CF (8-bit), SD (4-bit), MMC, xD/SM (8-bit), MS, MS PRO (4-bit), MS ROM, MS Duo

AU6370 (LQFP 80) - USB2.0 Multiple Slots Flash Memory Card Reader Controller

CF/MD, SM, xD, MS, MS PRO, SD/SDHC, MMC
Supported modes not mentioned, so most likely successor for the AU6368

AU6371 (LQFP 48) [PID 6366] - USB 2.0 Single LUN Multiple Flash Card Reader Controller

CF/MD (16-bit), SD 2.0, MMC 4.0 (8-bit), MS, MS PRO (4-bit), xD 1.2, SM

AU6375 (LQFP 100) [PID 6362] - USB2.0 Multi-LUN Flash Card Reader Controller

CF 3.0 16-bit IDE, SD 1.1, MMC 4.0 8-bit, MS PRO 4-bit, SMC, xD 1.2

AU6377 (LQFP128) [PID 6334] - USB2.0 DUAL SD BUS FLASH CARD READER CONTROLLER

no details available at the moment, most likely AU6375 with second SD bus (5-LUN)

AU6433

no details available at the moment, seen as single-LUN SD/MS with 8-bit MS PRO-HG

AU6475 (LQFP80) - USB2.0 Multi-LUN Flash Card Reader Controller

SD 2.0, MMC 4.2 (4bit), CF 4.1 (PIO-6), xD 1.2, MS PRO-HG 1.01 (4bit)

AU6476

no details available at the moment, seen as multi-LUN multi card reader

AU6477

no details available at the moment, seen as multi-LUN multi card reader

 » ALi Corporation   [VID 0402]

M5635 (LQFP 128) [PID 5635] - USB 2.0 Flash Card Controller

CF, MD, SM, xD, NAND Flash, MMC, SD, MS, MS Pro

M5635+ (LQFP 128) - USB 2.0 ATAPI & Flash Card Controller

CF, MD, SM, xD, NAND Flash, MMC, SD, MS, MS Pro, ATAPI

 » C-Media Electronics   [VID 0D8C]

CM220-LX (QFP 100) - Updateable USB2.0 Card Reader Controller

CF 2.0, MD, MagicStor, SM, xD (1.1/1.2), MMC, MMCplus (MMC 4.0, 1/4 bit), SD, HS SD (1.1), MS, HS MS, MS Pro, HS MS Pro, miniSD, T-Flash, MS Duo, MS Pro Duo, RS-MMC, MMCmobile (MMC 4.0, 1/4 bit), MMC ROM, MMCplus ROM, MS ROM, MS Pro ROM, SM ROM

CM220-FX (QFP 128) - Updateable USB2.0 Card Reader Controller

CF 2.0, MD, MagicStor, SM, xD (1.1/1.2), MMC, MMCplus (MMC 4.0, 1/4/8 bit), SD, HS SD (1.1), MS, HS MS, MS Pro, HS MS Pro, miniSD, T-Flash, MS Duo, MS Pro Duo, RS-MMC, MMCmobile (MMC 4.0, 1/4/8 bit), MMC ROM, MMCplus ROM, MS ROM, MS Pro ROM, SM ROM

 » Carry Computer Eng. Co., Ltd.   [VID 07CC]

unknown controller [PID 0300]

no details available at the moment

Winter, Rev. 1.3 / Rev. 1.4 [PID 0340]

no details available at the moment

WIN II, Rev. 1.0 / Rev. 2.0 [PID 0500]

no details available at the moment

Jupiter, Rev. 1.0 [PID B001]

no details available at the moment

 » Cypress Semiconductor Corporation   [VID 04B4]

ISD-300LP / CY7C68310 - USB 2.0 to ATA/ATAPI Bridge

CF, MD

 » DataFab Systems Inc.   [VID 07C4]

DF-U = DataFab USB; A = Alcor Micro, G = Genesys Logic, N = NeoDio

DF-UA-04 - USB 2.0

= Alcor Micro AU6333

DF-UG-26 - USB 2.0

= Genesys Logic GL8xx

DF-UG-36 [PID A604] - USB 2.0

= Genesys Logic GL816E

DF-UN-34 - USB 2.0

= NeoDio ND3260

 » Davicom Semiconductor Inc.   [VID 0A46]

DM3002E - USB 2.0 Card Reader Controller

no details available at the moment

DM3003E - USB 2.0 Card Reader Controller plus HD Interface

no details available at the moment

 » ENE Technology, Inc.   [VID 0CF2]

UB6220 [PID 6220] - USB 2.0 Flash Card Reader Controller

CF 1.4, MS/MS PRO/HS MS (max. 4-bit, 40MHz), SM/xD, CMOS NAND Flash, SD, MMC 4.0 (4 bit)

UB6225 [PID 6225] - USB 2.0 SD Card Reader Controller

no details available at the moment

 » Genesys Logic, Inc.   [VID 05E3]

GL813 (LQFP-48) [PID 0703] - USB 2.0 Flash Card Reader Controller

CF, MD

GL813 (LQFP-100)

=GL813 with external ROM/Flash

GL816 (LQFP-128) [PID 0760] - USB 2.0 Multi-Interface Flash Card Reader Controller

PCMCIA, CF & MD, SM, SD, MMC, MS

GL816E (LQFP-128) [PID 0710] - USB 2.0 Multi-Interface Flash Card Reader Controller

CF-I/II & MD, SD & miniSD, MMC & RS-MMC, MS, MS Duo, HS MS, MS PRO, MS PRO Duo, MS ROM (max. 4-bit, 40MHz), SM (3.3V & 5V), xD.

GL817 [PID 0705] - USB 2.0 Flash Card Reader Controller

MS, MS Pro, SD, MMC

GL817E (LQFP-48) - USB 2.0 Flash Card Reader Controller

SD & miniSD, MMC & RS-MMC, MS, MS Duo, HS MS, MS PRO, MS PRO Duo, MS ROM (max. 4-bit, 40MHz)

GL819 (LQFP-128) [PID 070E] - USB 2.0 Flash Card Reader Controller

CF-I/II & MD CF 2.1/3.0 (8-bit, 16-bit), SD & miniSD (SD 1.1), MMC & RS-MMC (MMC 4.1), MS, MS Duo, HS MS, MS PRO, MS PRO Duo, MS ROM, SM (3.3V+5V) & xD 1.2b Type M (8-bit)

GL819A (LQFP-128)

=GL819 without xD interface

GL819S (LQFP-128)

=GL819 low power version

GL819SA (LQFP-128)

=GL819S without xD interface

GL819SD (LQFP-48)

=GL819 with SD/MMC only!

GL826-MXG (LQFP-128) - USB 2.0 Multi-Slot Flash Card Reader Controller, MS PRO-HG 8bit

CF 4.0 PIO 0-6, UDMA 0-4, SD/SDHC 2.0 (4bit), MMC/MMCplus 4.2 (8bit), MS PRO/PRO-HG (8bit), SM, xD 1.2c

GL826-MXG (LQFP-128) - USB 2.0 Multi-Slot Flash Card Reader Controller, Dual SD/MMC Bus

CF 4.0 PIO 0-6, UDMA 0-4, SD/SDHC 2.0 (4bit), MMC/MMCplus 4.2 (8bit), MS PRO/PRO-HG (4bit), SM, cD 1.2c

GL826-MNG (LQFP-48) - USB 2.0 SDMMC / MS PRO-HG

SD/SDHC 2.0 (4bit), MMC/MMCplus 4.2 (8bit), MS PRO/PRO-HG (8bit)

GL827 - USB 2.0 Single Slot SD/MMC/MS/SM/xD-Picture

SD 2.0, MMC 4.2 (8-bit), MS, MS PRO, xD 1.2c (Type M/H)
Six different packages/configurations available.

GL828 (LQFP-48/LQFN-48) - SD/MMC Single Slot Card Reader Controller

SD/SDHC 2.0, MMC 4.2 (8bit)

 » ISSI - Integrated Silicon Solution Inc. 

 » ICSI - Integrated Circuit Solution Inc.   [VID 0DDA]

IC1206-F128LQ - USB 2.0/ATAPI Card Reader & Bridge

ATAPI Slave, ATAPI Host, CF, SM, xD, SD, MMC, MS, MS Duo, MS Pro

IC1210-F128LQ [PID 2001/2005/2026] - USB 2.0 Reader

IC1210-M128LQ [PID 2001/2005/2026] - USB 2.0 Reader

CF, SM, xD, SD, MMC (4-bit), MS, MS Duo, MS Pro, MP3

IC1211-F128LQ - USB 2.0 Card Reader & Bridge

ATAPI Host, CF, SM, xD, SD, MMC, MS, MS Duo, MS Pro, MP3

IC1213-F64TQ - USB 2.0 Reader

IC1213-M64TQ - USB 2.0 Reader

SD, MMC (4-bit), MS, MS Duo, MS Pro

IC1216-F48LQ - USB 2.0 SM/xD Card Reader

IC1216-M48LQ - USB 2.0 SM/xD Card Reader

SM, xD

IC1230-F128LQ - USB 2.0 Card Reader

IC1230-M128LQ - USB 2.0 Card Reader

CF, SM, xD, NAND, MLC, SD, MMC (8-bit), MS, MS PRO, mp3

IC1233-F64LQ - USB 2.0 Card Reader

IC1233-M64LQ - USB 2.0 Card Reader

SD, MMC (8-bit), MS, MS PRO, mp3

 » ITE Tech. Inc.   [VID 048D]

IT1336 - USB2.0 Single LUN Multiple Card Reader Controller

IT1337 - USB2.0 Single LUN Multiple Card Reader Controller

IT1345 [PID 1345] - USB2.0 Multi LUN Flash Card Reader Controller

 » KTC - Key Technology Corp.   [VID 0F5F]

FC1308TU - Multi-Interface Controller

USB 2.0, USB OTG, ATAPI, CF, MMC, SD, MS, SM, xD

FC1320 - USB 2.0 Card Reader Controller

xD, SM, MS, MS Pro (4-bit), MMC, SD, CF, MD, ATA/IDE

FC1322 - USB 2.0 Card Reader Controller

no details available at the moment

 » Myson Century, Inc.   [VID 04CF]

CS8818 - General Purpose USB2.0-to-ATAPI Bridge

Also used as single-slot CF card reader.

CS8819 - USB 2.0 9-in-1 Card Reader IC

SM, CF, SD, MMC, xD, MS, MS PRO, NAND-Flash

CS8822 - USB 2.0 Flash Card Reader and ATA/ATAPI Drive Controller

SM, CF, SD (1.0), MMC (3.0), xD, MS (1.4), MS PRO 4-bit (1.0), ATA/ATAPI (PIO 4, MDMA 2, UDMA 3)

 » NeoDio Technologies Corporation   [VID 0AEC]

ND3216 - Multi-Format Flash Memory Card Reader with USB 2.0 HS Interface

MS, MS PRO, SD, MMC

ND3260 [PID 3260] - 8 in 1 Flash Device Controller with USB 2.0 HS Interface

CF, MD, SM, xD, MMC, SD, MS, MS Pro

ND7060 - Multi-Format Flash Card Reader/Writer Controller

SM (1.4), MS (1.4), MS PRO (1.0), CF (2.0), SD (1.01), MMC (3.31), xD (1.1)

 » Ours Technology Inc.   [VID 0EA0]

OTi-2126 [PID 2126] - 8 In 1 Card Reader Controller

CF, MD, SM, xD, SD, MMC, MS, MS Pro (4-bit)

OTi-2136 - USB 2.0 to CF Bridge Controller

CF (rev. 1.4), MD

OTi-2153 - USB 2.0 to SD/MMC Bridge Controller

MC (rev. 3.2), SD (rev. 1.01)

 » OnSpec Electronic Inc.   [VID 55AA]

C236 (LQFP100/LQFP64) - FLASH Media R/W Controller USB2.0

CF, SM, MS, MS Pro, MS Duo, SD, mini-SD, MMC, xD, PCMCIA, NAND, NAND MLC, MD

xSil 238 / C238 / 90C238 (LQFP100) - FLASH Media R/W Controller USB2.0

CF, SM, MS, MS PRO, MS Duo, SD, miniSD, MMC, RS-MMC, PCMCIA, xD, NAND, NAND MLC, MD

xSil 238B (LQFP100) - Hi-Speed USB Flash Media Reader

IDE/ATAPI, MMC, SD, MemoryStick/PRO (4bit), SmartMedia, xD (Type M, 2GB), CF.

xSil 239B (LQFP48) - Hi-Speed USB NAND Flash Controller

8bit + 16bit NAND / MLC NAND Flash, SmartMedi, xD

xSil 248B (LQFP100) - Hi-Speed USB Extreme Flash Media Reader

= xSil 238B + CF PIO 5+6 20MB/s, SD 20MB/s, MS PRO 18MB/s, MMC 4.0 20MB/s

xSil 249 (LQFP48) - Hi-Speed USB Extreme CompactFlash and NAND Flash Controller chip

= xSil 239B + Renesas AG-AND Flash + CF PIO 5+6 (???)

xSil 251 (LQFP48) [PID 2B00] - CF/HDD Controller

PIO 0-6, MDMA 0-2, UDMA 0-4

 » Phison Electronics Corporation   [VID 0D7D]

PS2002 - USB 2.0 Flash Card Controller

CF, MD, ATA, ATAPI, SM, xD, NAND Flash, MMC, SD, MS, MS Pro

PS2151 - USB 2.0 Flash Controller

SM, xD, MS, MS Pro, SD, MMC, NAND Flash

 » Prolific Technology Inc.   [VID 067B]

PL-2525 - Hi-Speed USB MS PRO/MS Card Reader and Flash Disk Controller

MS, MS Pro (4-bit)

PL-2533 - Hi-Speed USB MS PRO/MS/SD/MMC Card Reader Controller

MS, MS Pro (4-bit), SD, MMC

PL-2535 - Hi-Speed USB Multi-Card Reader and Flash Disk Controller

MS Pro, MS, SD, MMC, CF, MD, SM, xD, NAND-Flash

 » Realtek Semiconductor Corp.   [VID 0BDA]

RTS5101 (LQFP-128) [PID 0103] - USB 2.0 Card Reader Controller

CF, MD, MS, MS PRO (4-bit), SD, MMC, SM, xD, NAND Flash

RTS5106-01E [PID 0107] - USB 2.0 Card Reader Controller

no details available at the moment

RTS5111 (LQFP-128) - USB 2.0 Card Reader Controller

CF, MD, SM, SD (50MHz 4-bit), MMC (52MHz 8-bit), MS (4-bit), MS PRO (4-bit), xD

RTS5116 (LQFP-48) - USB 2.0 Card Reader Controller

SD (50MHz 4-bit), MMC (52MHz 8-bit), MS (4-bit), MS PRO (4-bit)

RTS5156 (LQFP-48) - USB 2.0 Card Reader Controller

Details unknown.

RTS5151 (LQFP-100) [PID 0151] - USB 2.0 Card Reader Controller

Details unknown. Multi-LUN Multi Controller, UDMA CF.

RTS5158 (LQFP-48) [PID 0158] - USB 2.0 Card Reader Controller

Details unknown. Single-LUN Multi Controller, UDMA CF.

RTS5161 (LQFP-128) [PID 0161] - USB 2.0 Card Reader Controller

Details unknown. Multi-LUN Multi Controller, UDMA CF, SIM Card, Smart Card.

 » Silicon Motion, Inc.   [VID 0C1A]

SM331 (LQFP48/QFN28) - USB2.0 Single Slot Flash Memory Card Reader Controller

SD 2.0, MMC 4.2, MS PRO 1.4

SM333 (LQFP100) - USB2.0 Multi-Slot Flash Memory Card Reader Controller

CF 4.0 (UDMA), Dual-SD/MMC SD 2.0, MMC 4.2, MS PRO 1.4, xD 1.2, SM

 » smsc - Standard Microsystems Corporation   [VID 0424]

USB2223 - USB 2.0 Flash Media Controller

SM, MS, HSMS (4-bit), MS Pro (4-bit), MS Duo, SD, MMC, CF, CF-ATA

USB2224 - USB 2.0 Flash Media Controller

SM, xD, MS, HSMS (4-bit), MS Pro (4-bit), MS Duo, SD, MMC, CF, CF-ATA

USB2227 - 4th Generation USB 2.0 Flash Media Controller

USB2228 - 4th Generation USB 2.0 Flash Media Controller

SM, xD, MS, HS MS (4-bit), MS PRO (4-bit), MS Duo, SD, miniSD, TF, MMC, RS-MMC, NAND Flash, CF, CF Ultra I & II, CF ATA

USB97C210 [PID 20FC] - USB 2.0 Flash Media Controller

CF, SM, MS, SD, MMC

USB97C223 [PID 223A] - USB 2.0 Flash Media Controller

SM, MS, HSMS (4-bit), MS Pro (4-bit), SD, MMC, CF, CF-ATA

 » Sunplus Technology Co., Ltd   [VID 04FC]

SPGT57xx - USB 2.0 Bus Solution Controller Flash Disk, Card Reader, USB to IDE

no details available at the moment

 » USBest Technology, Inc.   [VID 1307]

UT310-L6 (LQFP64) - USB 2.0 MS/SD/MMC 3-LUN Flash Card Reader Controller

Dual SD/MMC, MS 1.43, MS PRO 1.01 (4bit@40MHz)

UT310-L4 (LQFP48) - USB 2.0 MS/SD/MMC 2-LUN Flash Card Reader Controller

Dual SD/MMC / SD/MMC + MS

UT310-Q3 (QFN32) - USB 2.0 SD/MMC Single-LUN Flash Card Reader Controller

SD, SDHC, MMC 4.2 (8-bit)

UT310-S2 (SSOP28) - USB 2.0 SD/MMC Single-LUN Flash Card Reader Controller

SD, SDHC, MMC 4.2 (4-bit)

UT313-L4 (LQFP48) - USB 2.0 High Performance CF Card Reader Controller

CF 4.0 (PIO-6, UDMA-4)

UT314-S2 (SSOP28) - USB 2.0 Single LUN MS/MS-PRO Flash Card Reader Controller

MS, HS-MS, MS-PRO 4bit@40MHz, MS ROM

UT330-LF (LQFP128) - USB 2.0 Multi Interface 5-LUN Flash Card Reader Controller

CF (PIO-5, UDMA-4), SD 2.0 (48/50MHz), SDHC, MMC 4.2 (8bit@52MHz), HC-MMC, MS 1.43, HS-MS, MS PRO 1.02 (4bit@40MHz), MS ROM, SM 1.0, xD 1.2 (M+H)

UT335-LF (LQFP128) - USB 2.0 Multi Interface 4-LUN Flash Card Reader Controller

CF/MD (PIO-5, UDMA-4), SD (48/50MHz), SDHC, MMC 4.2 (8bit@52MHz), HC-MMC, MS 1.43, HS-MS, MS PRO 1.02 (4bit@40MHz), MS ROM, SM 1.0, xD 1.2 (M+H)

UT335-LH (LQFP80) - USB 2.0 Multi Interface 4-LUN Flash Card Reader Controller

CF/MD (PIO-5), SD (48/50MHz), SDHC, MMC 4.2 (4bit@52MHz), HC-MMC, MS 1.43, HS-MS, MS PRO 1.02 (4bit@40MHz), MS ROM, SM 1.0, xD 1.2 (M+H)

UT360-LF (LQFP128) - USB 2.0 Multifunction 5-LUN Flash Card Reader Controller

ATA + SmartCard + Fingerprint + CF, SD, SDHC, MMC, HC-MMC, MS, MS-PRO, MS-ROM, SmartMedia, xD

UT367-L6 (LQFP64) - USB 2.0 3-LUN Flash Card Reader with Smart Card Interface

Smart Card + Dual-SD, SDHC, MMC 4.2 (8bit), HC-MMC, MS 1.43, HS-MS, MS PRO 1.02 (4bit@40MHz), MS ROM

 » VIA Technologies, Inc.   [VID 040D]

VT6205 - USB 2.0 to 9-in-1 Flash Card Reader

CF, MD, SM, MS, MS Pro (4-bit), SD, MMC, xD, NAND-Flash

VT6205A - USB 2.0 to 9-in-1 Flash Card Reader

CF, MD, SM, MS, MS Pro (4-bit), SD, MMC, xD, NAND-Flash, ATA/ATAPI

 » Winbond Electronics Corp.   [VID 0416]

W86L586 - USB 2.0 I/F Card Read Controller

SD, MMC, CF, MD, MS, MS PRO, SM, xD