Online Data Transfer Units Converter
How to Convert from IDE (UDMA-66) to IDE (UDMA mode 4)?

How to Convert from IDE (UDMA-66) to IDE (UDMA mode 4)?

Learn how to convert between IDE (UDMA-66) and IDE (UDMA mode 4) data transfer units with our easy-to-use online converter designed for legacy PATA/IDE hardware settings and benchmarking.

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

IDE (UDMA-66) to IDE (UDMA mode 4) Conversion Table

IDE (UDMA-66) 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.
IDE (UDMA-66) to IDE (UDMA mode 4) Conversion Table
IDE (UDMA-66) IDE (UDMA mode 4)

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 tool converts values between IDE (UDMA-66) and IDE (UDMA mode 4), two identical Parallel ATA transfer modes that both define a maximum theoretical raw data rate of about 66.7 megabytes per second. It helps users compare specifications, configure BIOS settings, and troubleshoot legacy PATA/IDE storage devices.

How to Use This Tool?

  • Enter the numerical value representing IDE (UDMA-66) units you want to convert
  • Select IDE (UDMA-66) as the source unit and IDE (UDMA mode 4) as the target unit
  • Click the convert button to get an equivalent value in IDE (UDMA mode 4)

Key Features

  • Converts between IDE (UDMA-66) and IDE (UDMA mode 4) at a 1:1 ratio
  • Supports data transfer mode conversions for legacy PATA/IDE hard drives and optical drives
  • Browser-based and easy to use with no installation required

Examples

  • 5 IDE (UDMA-66) converts to 5 IDE (UDMA mode 4)
  • 10 IDE (UDMA-66) is equal to 10 IDE (UDMA mode 4)

Common Use Cases

  • Specifying or checking the maximum burst throughput of older IDE/PATA drives
  • Configuring drive transfer modes in BIOS or legacy operating systems
  • Diagnosing transfer speeds or errors on legacy IDE systems
  • Benchmarking or maintaining legacy storage devices from the late 1990s and early 2000s
  • Data recovery involving PATA/IDE hard drives and optical drives

Tips & Best Practices

  • Ensure hardware compatibility including an 80-conductor PATA cable and controller support
  • Use this conversion when comparing or configuring legacy IDE device settings
  • Combine with system BIOS configuration for consistent drive performance
  • Recall that this conversion applies only to legacy IDE interfaces, not modern SATA or NVMe drives

Limitations

  • Both units reflect theoretical maximum speeds; actual transfer rates may be lower due to hardware limitations or system overhead
  • The conversion applies only to legacy IDE interfaces and is not suitable for modern storage technologies
  • Requires compatible PATA cables and hardware support for reliable data transfer

Frequently Asked Questions

Are IDE (UDMA-66) and IDE (UDMA mode 4) different units?
No, both IDE (UDMA-66) and IDE (UDMA mode 4) represent the same Parallel ATA transfer mode with identical maximum data rates and require similar hardware support.

What hardware is needed for reliable IDE (UDMA-66) transfers?
An 80-conductor PATA cable and support from both the storage controller and device are necessary for proper IDE (UDMA-66) operation.

Can this converter be used for modern SATA or NVMe drives?
No, this tool is intended for legacy IDE interfaces only and does not apply to modern SATA or NVMe storage devices.

Key Terminology

IDE (UDMA-66)
A Parallel ATA transfer mode also known as Ultra DMA Mode 4 or ATA-66, defining a maximum theoretical data rate of 66.7 MB/s, requiring an 80-conductor PATA cable.
IDE (UDMA mode 4)
A Parallel ATA transfer mode in the IDE/ATA standard using Ultra DMA protocol with maximum throughput around 66.7 MB/s, requiring an 80-conductor IDE cable.
PATA cable
A Parallel ATA ribbon cable used to connect storage devices such as hard drives and optical drives in legacy computer systems.

Quick Knowledge Check

What is the conversion rate between IDE (UDMA-66) and IDE (UDMA mode 4)?
Which cable is required for reliable IDE (UDMA-66) operation?
Which of these is a common use case for converting IDE (UDMA-66) to IDE (UDMA mode 4)?