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How to Convert from IDE (UDMA-66) to IDE (UDMA mode 2)?
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How to Convert from IDE (UDMA-66) to IDE (UDMA mode 2)?

Convert data transfer rates between IDE (UDMA-66) and IDE (UDMA mode 2) effortlessly with this tool. Understand key differences and practical applications for legacy PATA hardware configurations.

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

IDE (UDMA-66) to IDE (UDMA mode 2) Conversion Table

IDE (UDMA-66) IDE (UDMA mode 2)

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.
IDE (UDMA-66) to IDE (UDMA mode 2) Conversion Table
IDE (UDMA-66) IDE (UDMA mode 2)

Explore More Data Transfer Units Converter

  1. How to convert from bit/second [b/s] to IDE (UDMA-66)?
  2. How to convert from IDE (UDMA-66) to bit/second [b/s]?
  3. How to convert from byte/second [B/s] to IDE (UDMA-66)?
  4. How to convert from IDE (UDMA-66) to byte/second [B/s]?
  5. How to convert from kilobit/second (SI def.) to IDE (UDMA-66)?
  6. How to convert from IDE (UDMA-66) to kilobit/second (SI def.)?
  7. How to convert from kilobyte/second (SI def.) to IDE (UDMA-66)?
  8. How to convert from IDE (UDMA-66) to kilobyte/second (SI def.)?
  9. How to convert from kilobit/second [kb/s] to IDE (UDMA-66)?
  10. How to convert from IDE (UDMA-66) to kilobit/second [kb/s]?
  11. How to convert from kilobyte/second [kB/s] to IDE (UDMA-66)?
  12. How to convert from IDE (UDMA-66) to kilobyte/second [kB/s]?
  13. How to convert from megabit/second (SI def.) to IDE (UDMA-66)?
  14. How to convert from IDE (UDMA-66) to megabit/second (SI def.)?
  15. How to convert from megabyte/second (SI def.) to IDE (UDMA-66)?
  16. How to convert from IDE (UDMA-66) to megabyte/second (SI def.)?
  17. How to convert from megabit/second [Mb/s] to IDE (UDMA-66)?
  18. How to convert from IDE (UDMA-66) to megabit/second [Mb/s]?
  19. How to convert from megabyte/second [MB/s] to IDE (UDMA-66)?
  20. How to convert from IDE (UDMA-66) to megabyte/second [MB/s]?
  21. How to convert from gigabit/second (SI def.) to IDE (UDMA-66)?
  22. How to convert from IDE (UDMA-66) to gigabit/second (SI def.)?
  23. How to convert from gigabyte/second (SI def.) to IDE (UDMA-66)?
  24. How to convert from IDE (UDMA-66) to gigabyte/second (SI def.)?
  25. How to convert from gigabit/second [Gb/s] to IDE (UDMA-66)?
  26. How to convert from IDE (UDMA-66) to gigabit/second [Gb/s]?
  27. How to convert from gigabyte/second [GB/s] to IDE (UDMA-66)?
  28. How to convert from IDE (UDMA-66) to gigabyte/second [GB/s]?
  29. How to convert from terabit/second (SI def.) to IDE (UDMA-66)?
  30. How to convert from IDE (UDMA-66) to terabit/second (SI def.)?
  31. How to convert from terabyte/second (SI def.) to IDE (UDMA-66)?
  32. How to convert from IDE (UDMA-66) to terabyte/second (SI def.)?
  33. How to convert from terabit/second [Tb/s] to IDE (UDMA-66)?
  34. How to convert from IDE (UDMA-66) to terabit/second [Tb/s]?
  35. How to convert from terabyte/second [TB/s] to IDE (UDMA-66)?
  36. How to convert from IDE (UDMA-66) to terabyte/second [TB/s]?
  37. How to convert from ethernet to IDE (UDMA-66)?
  38. How to convert from IDE (UDMA-66) to ethernet?
  39. How to convert from ethernet (fast) to IDE (UDMA-66)?
  40. How to convert from IDE (UDMA-66) to ethernet (fast)?
  41. How to convert from ethernet (gigabit) to IDE (UDMA-66)?
  42. How to convert from IDE (UDMA-66) to ethernet (gigabit)?
  43. How to convert from OC1 to IDE (UDMA-66)?
  44. How to convert from IDE (UDMA-66) to OC1?
  45. How to convert from OC3 to IDE (UDMA-66)?
  46. How to convert from IDE (UDMA-66) to OC3?
  47. How to convert from OC12 to IDE (UDMA-66)?
  48. How to convert from IDE (UDMA-66) to OC12?
  49. How to convert from OC24 to IDE (UDMA-66)?
  50. How to convert from IDE (UDMA-66) to OC24?
  51. How to convert from OC48 to IDE (UDMA-66)?
  52. How to convert from IDE (UDMA-66) to OC48?
  53. How to convert from OC192 to IDE (UDMA-66)?
  54. How to convert from IDE (UDMA-66) to OC192?
  55. How to convert from OC768 to IDE (UDMA-66)?
  56. How to convert from IDE (UDMA-66) to OC768?
  57. How to convert from ISDN (single channel) to IDE (UDMA-66)?
  58. How to convert from IDE (UDMA-66) to ISDN (single channel)?
  59. How to convert from ISDN (dual channel) to IDE (UDMA-66)?
  60. How to convert from IDE (UDMA-66) to ISDN (dual channel)?
  61. How to convert from modem (110) to IDE (UDMA-66)?
  62. How to convert from IDE (UDMA-66) to modem (110)?
  63. How to convert from modem (300) to IDE (UDMA-66)?
  64. How to convert from IDE (UDMA-66) to modem (300)?
  65. How to convert from modem (1200) to IDE (UDMA-66)?
  66. How to convert from IDE (UDMA-66) to modem (1200)?
  67. How to convert from modem (2400) to IDE (UDMA-66)?
  68. How to convert from IDE (UDMA-66) to modem (2400)?
  69. How to convert from modem (9600) to IDE (UDMA-66)?
  70. How to convert from IDE (UDMA-66) to modem (9600)?
  71. How to convert from modem (14.4k) to IDE (UDMA-66)?
  72. How to convert from IDE (UDMA-66) to modem (14.4k)?
  73. How to convert from modem (28.8k) to IDE (UDMA-66)?
  74. How to convert from IDE (UDMA-66) to modem (28.8k)?
  75. How to convert from modem (33.6k) to IDE (UDMA-66)?
  76. How to convert from IDE (UDMA-66) to modem (33.6k)?
  77. How to convert from modem (56k) to IDE (UDMA-66)?
  78. How to convert from IDE (UDMA-66) to modem (56k)?
  79. How to convert from SCSI (Async) to IDE (UDMA-66)?
  80. How to convert from IDE (UDMA-66) to SCSI (Async)?
  81. How to convert from SCSI (Sync) to IDE (UDMA-66)?
  82. How to convert from IDE (UDMA-66) to SCSI (Sync)?
  83. How to convert from SCSI (Fast) to IDE (UDMA-66)?
  84. How to convert from IDE (UDMA-66) to SCSI (Fast)?
  85. How to convert from SCSI (Fast Ultra) to IDE (UDMA-66)?
  86. How to convert from IDE (UDMA-66) to SCSI (Fast Ultra)?
  87. How to convert from SCSI (Fast Wide) to IDE (UDMA-66)?
  88. How to convert from IDE (UDMA-66) to SCSI (Fast Wide)?
  89. How to convert from SCSI (Fast Ultra Wide) to IDE (UDMA-66)?
  90. How to convert from IDE (UDMA-66) to SCSI (Fast Ultra Wide)?
  91. How to convert from SCSI (Ultra-2) to IDE (UDMA-66)?
  92. How to convert from IDE (UDMA-66) to SCSI (Ultra-2)?
  93. How to convert from SCSI (Ultra-3) to IDE (UDMA-66)?
  94. How to convert from IDE (UDMA-66) to SCSI (Ultra-3)?
  95. How to convert from SCSI (LVD Ultra80) to IDE (UDMA-66)?
  96. How to convert from IDE (UDMA-66) to SCSI (LVD Ultra80)?
  97. How to convert from SCSI (LVD Ultra160) to IDE (UDMA-66)?
  98. How to convert from IDE (UDMA-66) to SCSI (LVD Ultra160)?
  99. How to convert from IDE (PIO mode 0) to IDE (UDMA-66)?
  100. How to convert from IDE (UDMA-66) to IDE (PIO mode 0)?
  101. How to convert from IDE (PIO mode 1) to IDE (UDMA-66)?
  102. How to convert from IDE (UDMA-66) to IDE (PIO mode 1)?
  103. How to convert from IDE (PIO mode 2) to IDE (UDMA-66)?
  104. How to convert from IDE (UDMA-66) to IDE (PIO mode 2)?
  105. How to convert from IDE (PIO mode 3) to IDE (UDMA-66)?
  106. How to convert from IDE (UDMA-66) to IDE (PIO mode 3)?
  107. How to convert from IDE (PIO mode 4) to IDE (UDMA-66)?
  108. How to convert from IDE (UDMA-66) to IDE (PIO mode 4)?
  109. How to convert from IDE (DMA mode 0) to IDE (UDMA-66)?
  110. How to convert from IDE (UDMA-66) to IDE (DMA mode 0)?
  111. How to convert from IDE (DMA mode 1) to IDE (UDMA-66)?
  112. How to convert from IDE (UDMA-66) to IDE (DMA mode 1)?
  113. How to convert from IDE (DMA mode 2) to IDE (UDMA-66)?
  114. How to convert from IDE (UDMA-66) to IDE (DMA mode 2)?
  115. How to convert from IDE (UDMA mode 0) to IDE (UDMA-66)?
  116. How to convert from IDE (UDMA-66) to IDE (UDMA mode 0)?
  117. How to convert from IDE (UDMA mode 1) to IDE (UDMA-66)?
  118. How to convert from IDE (UDMA-66) to IDE (UDMA mode 1)?
  119. How to convert from IDE (UDMA mode 2) to IDE (UDMA-66)?
  120. How to convert from IDE (UDMA-66) to IDE (UDMA mode 2)?
  121. How to convert from IDE (UDMA mode 3) to IDE (UDMA-66)?
  122. How to convert from IDE (UDMA-66) to IDE (UDMA mode 3)?
  123. How to convert from IDE (UDMA mode 4) to IDE (UDMA-66)?
  124. How to convert from IDE (UDMA-66) to IDE (UDMA mode 4)?
  125. How to convert from IDE (UDMA-33) to IDE (UDMA-66)?
  126. How to convert from IDE (UDMA-66) to IDE (UDMA-33)?
  127. How to convert from USB to IDE (UDMA-66)?
  128. How to convert from IDE (UDMA-66) to USB?
  129. How to convert from firewire (IEEE-1394) to IDE (UDMA-66)?
  130. How to convert from IDE (UDMA-66) to firewire (IEEE-1394)?
  131. How to convert from T0 (payload) to IDE (UDMA-66)?
  132. How to convert from IDE (UDMA-66) to T0 (payload)?
  133. How to convert from T0 (B8ZS payload) to IDE (UDMA-66)?
  134. How to convert from IDE (UDMA-66) to T0 (B8ZS payload)?
  135. How to convert from T1 (signal) to IDE (UDMA-66)?
  136. How to convert from IDE (UDMA-66) to T1 (signal)?
  137. How to convert from T1 (payload) to IDE (UDMA-66)?
  138. How to convert from IDE (UDMA-66) to T1 (payload)?
  139. How to convert from T1Z (payload) to IDE (UDMA-66)?
  140. How to convert from IDE (UDMA-66) to T1Z (payload)?
  141. How to convert from T1C (signal) to IDE (UDMA-66)?
  142. How to convert from IDE (UDMA-66) to T1C (signal)?
  143. How to convert from T1C (payload) to IDE (UDMA-66)?
  144. How to convert from IDE (UDMA-66) to T1C (payload)?
  145. How to convert from T2 (signal) to IDE (UDMA-66)?
  146. How to convert from IDE (UDMA-66) to T2 (signal)?
  147. How to convert from T3 (signal) to IDE (UDMA-66)?
  148. How to convert from IDE (UDMA-66) to T3 (signal)?
  149. How to convert from T3 (payload) to IDE (UDMA-66)?
  150. How to convert from IDE (UDMA-66) to T3 (payload)?
  151. How to convert from T3Z (payload) to IDE (UDMA-66)?
  152. How to convert from IDE (UDMA-66) to T3Z (payload)?
  153. How to convert from T4 (signal) to IDE (UDMA-66)?
  154. How to convert from IDE (UDMA-66) to T4 (signal)?
  155. How to convert from E.P.T.A. 1 (signal) to IDE (UDMA-66)?
  156. How to convert from IDE (UDMA-66) to E.P.T.A. 1 (signal)?
  157. How to convert from E.P.T.A. 1 (payload) to IDE (UDMA-66)?
  158. How to convert from IDE (UDMA-66) to E.P.T.A. 1 (payload)?
  159. How to convert from E.P.T.A. 2 (signal) to IDE (UDMA-66)?
  160. How to convert from IDE (UDMA-66) to E.P.T.A. 2 (signal)?
  161. How to convert from E.P.T.A. 2 (payload) to IDE (UDMA-66)?
  162. How to convert from IDE (UDMA-66) to E.P.T.A. 2 (payload)?
  163. How to convert from E.P.T.A. 3 (signal) to IDE (UDMA-66)?
  164. How to convert from IDE (UDMA-66) to E.P.T.A. 3 (signal)?
  165. How to convert from E.P.T.A. 3 (payload) to IDE (UDMA-66)?
  166. How to convert from IDE (UDMA-66) to E.P.T.A. 3 (payload)?
  167. How to convert from H0 to IDE (UDMA-66)?
  168. How to convert from IDE (UDMA-66) to H0?
  169. How to convert from H11 to IDE (UDMA-66)?
  170. How to convert from IDE (UDMA-66) to H11?
  171. How to convert from H12 to IDE (UDMA-66)?
  172. How to convert from IDE (UDMA-66) to H12?
  173. How to convert from Virtual Tributary 1 (signal) to IDE (UDMA-66)?
  174. How to convert from IDE (UDMA-66) to Virtual Tributary 1 (signal)?
  175. How to convert from Virtual Tributary 1 (payload) to IDE (UDMA-66)?
  176. How to convert from IDE (UDMA-66) to Virtual Tributary 1 (payload)?
  177. How to convert from Virtual Tributary 2 (signal) to IDE (UDMA-66)?
  178. How to convert from IDE (UDMA-66) to Virtual Tributary 2 (signal)?
  179. How to convert from Virtual Tributary 2 (payload) to IDE (UDMA-66)?
  180. How to convert from IDE (UDMA-66) to Virtual Tributary 2 (payload)?
  181. How to convert from Virtual Tributary 6 (signal) to IDE (UDMA-66)?
  182. How to convert from IDE (UDMA-66) to Virtual Tributary 6 (signal)?
  183. How to convert from Virtual Tributary 6 (payload) to IDE (UDMA-66)?
  184. How to convert from IDE (UDMA-66) to Virtual Tributary 6 (payload)?
  185. How to convert from STS1 (signal) to IDE (UDMA-66)?
  186. How to convert from IDE (UDMA-66) to STS1 (signal)?
  187. How to convert from STS1 (payload) to IDE (UDMA-66)?
  188. How to convert from IDE (UDMA-66) to STS1 (payload)?
  189. How to convert from STS3 (signal) to IDE (UDMA-66)?
  190. How to convert from IDE (UDMA-66) to STS3 (signal)?
  191. How to convert from STS3 (payload) to IDE (UDMA-66)?
  192. How to convert from IDE (UDMA-66) to STS3 (payload)?
  193. How to convert from STS3c (signal) to IDE (UDMA-66)?
  194. How to convert from IDE (UDMA-66) to STS3c (signal)?
  195. How to convert from STS3c (payload) to IDE (UDMA-66)?
  196. How to convert from IDE (UDMA-66) to STS3c (payload)?
  197. How to convert from STS12 (signal) to IDE (UDMA-66)?
  198. How to convert from IDE (UDMA-66) to STS12 (signal)?
  199. How to convert from STS24 (signal) to IDE (UDMA-66)?
  200. How to convert from IDE (UDMA-66) to STS24 (signal)?
  201. How to convert from STS48 (signal) to IDE (UDMA-66)?
  202. How to convert from IDE (UDMA-66) to STS48 (signal)?
  203. How to convert from STS192 (signal) to IDE (UDMA-66)?
  204. How to convert from IDE (UDMA-66) to STS192 (signal)?
  205. How to convert from STM-1 (signal) to IDE (UDMA-66)?
  206. How to convert from IDE (UDMA-66) to STM-1 (signal)?
  207. How to convert from STM-4 (signal) to IDE (UDMA-66)?
  208. How to convert from IDE (UDMA-66) to STM-4 (signal)?
  209. How to convert from STM-16 (signal) to IDE (UDMA-66)?
  210. How to convert from IDE (UDMA-66) to STM-16 (signal)?
  211. How to convert from STM-64 (signal) to IDE (UDMA-66)?
  212. How to convert from IDE (UDMA-66) to STM-64 (signal)?

What Is This Tool?

This converter helps you transform data transfer rate values from IDE (UDMA-66), a Parallel ATA mode with a max theoretical data rate of 66.7 MB/s, to IDE (UDMA mode 2), a slower ATA/33 mode with about 33.3 MB/s throughput. It supports users managing legacy PATA device settings, benchmarking, and compatibility checks.

How to Use This Tool?

  • Enter the value representing data transfer in IDE (UDMA-66) units
  • Select IDE (UDMA mode 2) as the target unit
  • Click convert to see the equivalent transfer rate in IDE (UDMA mode 2)
  • Use the results to assist in BIOS or hardware configuration or performance analysis

Key Features

  • Converts between IDE (UDMA-66) and IDE (UDMA mode 2) transfer rates
  • Uses a clear conversion rate demonstrating the relationship between modes
  • Supports legacy PATA hardware configuration and troubleshooting
  • Browser-based and easy to use for quick comparisons
  • Includes examples that clarify how conversions work

Examples

  • 5 IDE (UDMA-66) converts to 10 IDE (UDMA mode 2)
  • 0.5 IDE (UDMA-66) converts to 1 IDE (UDMA mode 2)

Common Use Cases

  • Configuring legacy PC BIOS settings for older PATA drives to ensure compatibility
  • Comparing and interpreting disk throughput or benchmark results on legacy IDE systems
  • Troubleshooting why a PATA device is operating at a lower UDMA mode
  • Diagnosing transfer errors and verifying drive speed capabilities
  • Supporting IT maintenance of legacy PATA hard drives and optical drives

Tips & Best Practices

  • Verify cable type and controller support when interpreting transfer rates
  • Use this conversion only for legacy PATA interfaces, not for modern SATA or NVMe devices
  • Consider that theoretical transfer speeds may not reflect actual performance
  • Use this tool alongside hardware diagnostics for accurate troubleshooting
  • Be aware that real-world factors like system overhead and signal integrity affect throughput

Limitations

  • Conversion values represent theoretical maximum transfer rates only
  • Actual throughput can be influenced by cable quality, hardware, and system conditions
  • Applies exclusively to legacy Parallel ATA (PATA/IDE) interfaces
  • Does not correlate to current transfer standards like SATA or NVMe modes
  • Differences in speed might not always reflect real-world workload performance

Frequently Asked Questions

What does IDE (UDMA-66) represent?
IDE (UDMA-66) is a Parallel ATA transfer mode with a maximum theoretical raw data rate of 66.7 MB/s, often called Ultra DMA Mode 4 or ATA‑66, requiring an 80-conductor PATA cable.

How is IDE (UDMA mode 2) different from IDE (UDMA-66)?
IDE (UDMA mode 2), also known as ATA/33, offers a maximum theoretical transfer rate of about 33.3 MB/s, using a different signaling profile suitable for older PATA controllers and drives.

Why convert from IDE (UDMA-66) to IDE (UDMA mode 2)?
Conversions enable comparisons and configuration for legacy PATA drive compatibility, performance analysis, and resolving issues when devices negotiate lower transfer modes.

Key Terminology

IDE (UDMA-66)
A Parallel ATA transfer mode with up to 66.7 MB/s throughput, requiring 80-conductor PATA cables, used in older IDE storage devices.
IDE (UDMA mode 2)
Also known as ATA/33, a legacy Ultra DMA transfer mode with a maximum theoretical rate of about 33.3 MB/s for PATA devices.
Parallel ATA (PATA)
A standard interface for connecting storage devices like hard drives, prevalent in legacy computer hardware before SATA adoption.

Quick Knowledge Check

What is the maximum theoretical data rate of IDE (UDMA-66)?
What conversion rate is used to convert IDE (UDMA-66) to IDE (UDMA mode 2)?
Which interface is supported by this conversion tool?

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