Online Data Transfer Units Converter
How to Convert from Megabyte/second [MB/s] to IDE (UDMA mode 4)?
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How to Convert from Megabyte/second [MB/s] to IDE (UDMA mode 4)?

Learn how to convert data transfer rates from megabyte per second (MB/s) to the legacy IDE (UDMA mode 4) transfer mode. Understand key features, use cases, and limitations of this conversion tool for comparing modern and legacy data transfer standards.

Please check your input. It must be a valid numeric value.

Megabyte/second [MB/s] to IDE (UDMA mode 4) Conversion Table

Megabyte/second [MB/s] IDE (UDMA mode 4)

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.
Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.
Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.
Megabyte/second [MB/s] to IDE (UDMA mode 4) Conversion Table
Megabyte/second [MB/s] IDE (UDMA mode 4)

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  50. How to convert from megabyte/second [MB/s] to OC48?
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  54. How to convert from megabyte/second [MB/s] to OC768?
  55. How to convert from ISDN (single channel) to megabyte/second [MB/s]?
  56. How to convert from megabyte/second [MB/s] to ISDN (single channel)?
  57. How to convert from ISDN (dual channel) to megabyte/second [MB/s]?
  58. How to convert from megabyte/second [MB/s] to ISDN (dual channel)?
  59. How to convert from modem (110) to megabyte/second [MB/s]?
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  65. How to convert from modem (2400) to megabyte/second [MB/s]?
  66. How to convert from megabyte/second [MB/s] to modem (2400)?
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  74. How to convert from megabyte/second [MB/s] to modem (33.6k)?
  75. How to convert from modem (56k) to megabyte/second [MB/s]?
  76. How to convert from megabyte/second [MB/s] to modem (56k)?
  77. How to convert from SCSI (Async) to megabyte/second [MB/s]?
  78. How to convert from megabyte/second [MB/s] to SCSI (Async)?
  79. How to convert from SCSI (Sync) to megabyte/second [MB/s]?
  80. How to convert from megabyte/second [MB/s] to SCSI (Sync)?
  81. How to convert from SCSI (Fast) to megabyte/second [MB/s]?
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  83. How to convert from SCSI (Fast Ultra) to megabyte/second [MB/s]?
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  103. How to convert from IDE (PIO mode 3) to megabyte/second [MB/s]?
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  109. How to convert from IDE (DMA mode 1) to megabyte/second [MB/s]?
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  111. How to convert from IDE (DMA mode 2) to megabyte/second [MB/s]?
  112. How to convert from megabyte/second [MB/s] to IDE (DMA mode 2)?
  113. How to convert from IDE (UDMA mode 0) to megabyte/second [MB/s]?
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  115. How to convert from IDE (UDMA mode 1) to megabyte/second [MB/s]?
  116. How to convert from megabyte/second [MB/s] to IDE (UDMA mode 1)?
  117. How to convert from IDE (UDMA mode 2) to megabyte/second [MB/s]?
  118. How to convert from megabyte/second [MB/s] to IDE (UDMA mode 2)?
  119. How to convert from IDE (UDMA mode 3) to megabyte/second [MB/s]?
  120. How to convert from megabyte/second [MB/s] to IDE (UDMA mode 3)?
  121. How to convert from IDE (UDMA mode 4) to megabyte/second [MB/s]?
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  124. How to convert from megabyte/second [MB/s] to IDE (UDMA-33)?
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  135. How to convert from T1 (signal) to megabyte/second [MB/s]?
  136. How to convert from megabyte/second [MB/s] to T1 (signal)?
  137. How to convert from T1 (payload) to megabyte/second [MB/s]?
  138. How to convert from megabyte/second [MB/s] to T1 (payload)?
  139. How to convert from T1Z (payload) to megabyte/second [MB/s]?
  140. How to convert from megabyte/second [MB/s] to T1Z (payload)?
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  142. How to convert from megabyte/second [MB/s] to T1C (signal)?
  143. How to convert from T1C (payload) to megabyte/second [MB/s]?
  144. How to convert from megabyte/second [MB/s] to T1C (payload)?
  145. How to convert from T2 (signal) to megabyte/second [MB/s]?
  146. How to convert from megabyte/second [MB/s] to T2 (signal)?
  147. How to convert from T3 (signal) to megabyte/second [MB/s]?
  148. How to convert from megabyte/second [MB/s] to T3 (signal)?
  149. How to convert from T3 (payload) to megabyte/second [MB/s]?
  150. How to convert from megabyte/second [MB/s] to T3 (payload)?
  151. How to convert from T3Z (payload) to megabyte/second [MB/s]?
  152. How to convert from megabyte/second [MB/s] to T3Z (payload)?
  153. How to convert from T4 (signal) to megabyte/second [MB/s]?
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  157. How to convert from E.P.T.A. 1 (payload) to megabyte/second [MB/s]?
  158. How to convert from megabyte/second [MB/s] to E.P.T.A. 1 (payload)?
  159. How to convert from E.P.T.A. 2 (signal) to megabyte/second [MB/s]?
  160. How to convert from megabyte/second [MB/s] to E.P.T.A. 2 (signal)?
  161. How to convert from E.P.T.A. 2 (payload) to megabyte/second [MB/s]?
  162. How to convert from megabyte/second [MB/s] to E.P.T.A. 2 (payload)?
  163. How to convert from E.P.T.A. 3 (signal) to megabyte/second [MB/s]?
  164. How to convert from megabyte/second [MB/s] to E.P.T.A. 3 (signal)?
  165. How to convert from E.P.T.A. 3 (payload) to megabyte/second [MB/s]?
  166. How to convert from megabyte/second [MB/s] to E.P.T.A. 3 (payload)?
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  170. How to convert from megabyte/second [MB/s] to H11?
  171. How to convert from H12 to megabyte/second [MB/s]?
  172. How to convert from megabyte/second [MB/s] to H12?
  173. How to convert from Virtual Tributary 1 (signal) to megabyte/second [MB/s]?
  174. How to convert from megabyte/second [MB/s] to Virtual Tributary 1 (signal)?
  175. How to convert from Virtual Tributary 1 (payload) to megabyte/second [MB/s]?
  176. How to convert from megabyte/second [MB/s] to Virtual Tributary 1 (payload)?
  177. How to convert from Virtual Tributary 2 (signal) to megabyte/second [MB/s]?
  178. How to convert from megabyte/second [MB/s] to Virtual Tributary 2 (signal)?
  179. How to convert from Virtual Tributary 2 (payload) to megabyte/second [MB/s]?
  180. How to convert from megabyte/second [MB/s] to Virtual Tributary 2 (payload)?
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  182. How to convert from megabyte/second [MB/s] to Virtual Tributary 6 (signal)?
  183. How to convert from Virtual Tributary 6 (payload) to megabyte/second [MB/s]?
  184. How to convert from megabyte/second [MB/s] to Virtual Tributary 6 (payload)?
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  191. How to convert from STS3 (payload) to megabyte/second [MB/s]?
  192. How to convert from megabyte/second [MB/s] to STS3 (payload)?
  193. How to convert from STS3c (signal) to megabyte/second [MB/s]?
  194. How to convert from megabyte/second [MB/s] to STS3c (signal)?
  195. How to convert from STS3c (payload) to megabyte/second [MB/s]?
  196. How to convert from megabyte/second [MB/s] to STS3c (payload)?
  197. How to convert from STS12 (signal) to megabyte/second [MB/s]?
  198. How to convert from megabyte/second [MB/s] to STS12 (signal)?
  199. How to convert from STS24 (signal) to megabyte/second [MB/s]?
  200. How to convert from megabyte/second [MB/s] to STS24 (signal)?
  201. How to convert from STS48 (signal) to megabyte/second [MB/s]?
  202. How to convert from megabyte/second [MB/s] to STS48 (signal)?
  203. How to convert from STS192 (signal) to megabyte/second [MB/s]?
  204. How to convert from megabyte/second [MB/s] to STS192 (signal)?
  205. How to convert from STM-1 (signal) to megabyte/second [MB/s]?
  206. How to convert from megabyte/second [MB/s] to STM-1 (signal)?
  207. How to convert from STM-4 (signal) to megabyte/second [MB/s]?
  208. How to convert from megabyte/second [MB/s] to STM-4 (signal)?
  209. How to convert from STM-16 (signal) to megabyte/second [MB/s]?
  210. How to convert from megabyte/second [MB/s] to STM-16 (signal)?
  211. How to convert from STM-64 (signal) to megabyte/second [MB/s]?
  212. How to convert from megabyte/second [MB/s] to STM-64 (signal)?

What Is This Tool?

This unit converter transforms data transfer speeds measured in megabytes per second (MB/s) into the corresponding values in IDE (UDMA mode 4), a legacy Parallel ATA transfer mode. It helps users compare modern data rates with historical Ultra DMA standards used in older IDE drives.

How to Use This Tool?

  • Enter the data transfer rate in megabytes per second (MB/s) you want to convert
  • Select the original unit as megabyte/second (MB/s) and the target unit as IDE (UDMA mode 4)
  • Click the convert button to see the equivalent transfer rate in IDE (UDMA mode 4)
  • Use the results to compare modern data speeds to the legacy IDE Ultra DMA transfer mode

Key Features

  • Converts data transfer rates from megabyte/second (MB/s) to IDE (UDMA mode 4)
  • Supports understanding of both decimal and binary megabyte definitions in conversions
  • Useful for benchmarking or configuring legacy hardware supporting Ultra DMA/66 (ATA-4)
  • Browser-based and simple to use for quick comparisons between modern and legacy transfer modes

Examples

  • 10 MB/s equals approximately 0.158875152 IDE (UDMA mode 4)
  • 50 MB/s converts to about 0.79437576 IDE (UDMA mode 4)

Common Use Cases

  • Comparing modern data transfer rates to legacy Ultra DMA transfer modes in older IDE devices
  • Benchmarking or configuring late‑1990s to early‑2000s PC hardware using PATA/IDE interfaces
  • Interpreting data speeds for embedded systems or firmware relying on Ultra DMA modes
  • Supporting data recovery or hardware diagnostics involving legacy IDE storage drives

Tips & Best Practices

  • Be aware of the difference between decimal and binary megabyte definitions when converting
  • Understand that IDE (UDMA mode 4) has a maximum theoretical throughput near 66.7 MB/s
  • Use this conversion primarily for legacy hardware comparison, not for modern high-speed data transfers
  • Interpret conversion results as theoretical values, not accounting for overhead or real-world speed variations

Limitations

  • Maximum throughput of IDE (UDMA mode 4) is about 66.7 megabytes per second, making it unsuitable for modern high-speed needs
  • Conversion may vary slightly depending on decimal vs binary megabyte usage
  • Real-world transfer speeds may be lower due to protocol overhead and inefficiencies
  • This conversion does not include any calculation for data transfer overhead or hardware-related speed drops

Frequently Asked Questions

What does megabyte per second (MB/s) represent?
Megabyte per second is a data transfer rate indicating that one megabyte of data is moved every second. It can be defined using decimal (10^6 bytes) or binary (2^20 bytes) megabyte units.

What is IDE (UDMA mode 4)?
IDE (UDMA mode 4), also known as Ultra DMA/66, is a Parallel ATA transfer mode from the IDE/ATA standard, providing a maximum theoretical data speed of approximately 66.7 MB/s using an 80-conductor IDE cable.

Why convert MB/s to IDE (UDMA mode 4)?
Converting from MB/s to IDE (UDMA mode 4) helps compare current data transfer speeds with those of legacy IDE devices, which is useful for benchmarking, configuring older hardware, or performing data recovery on vintage storage systems.

Key Terminology

Megabyte per second (MB/s)
A data transfer rate representing one megabyte of data moved each second, defined in either decimal (10^6 bytes) or binary (2^20 bytes) units.
IDE (UDMA mode 4)
A Parallel ATA transfer mode known as Ultra DMA/66, providing theoretical data throughput up to 66.7 megabytes per second, used in legacy IDE storage devices.
Ultra DMA
A protocol used in IDE/ATA standards for transferring data between a drive and host rapidly by moving blocks of data efficiently.

Quick Knowledge Check

What does the unit megabyte per second (MB/s) measure?
IDE (UDMA mode 4) is also known as?
Which of the following is a limitation of IDE (UDMA mode 4)?

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