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

Learn how to convert data transfer values from IDE (PIO mode 4) to IDE (UDMA-66) with this easy-to-use online unit converter. Understand the differences and application contexts of both IDE data transfer modes.

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

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

IDE (PIO mode 4) IDE (UDMA-66)

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

Explore More Data Transfer Units Converter

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

What Is This Tool?

This tool converts data transfer values between IDE (PIO mode 4) and IDE (UDMA-66), two legacy ATA/IDE storage device transfer modes. It helps users compare and configure data transfer rates for older PATA storage hardware, assisting in compatibility and performance settings.

How to Use This Tool?

  • Enter the value in IDE (PIO mode 4) you wish to convert.
  • Select IDE (PIO mode 4) as the source unit and IDE (UDMA-66) as the target unit.
  • Click the convert button to get the equivalent value in IDE (UDMA-66).
  • Use the results to assist in configuring or benchmarking legacy IDE devices.

Key Features

  • Converts data transfer rates between IDE (PIO mode 4) and IDE (UDMA-66).
  • Supports legacy PATA/IDE storage device timing and throughput comparisons.
  • Facilitates performance benchmarking and configuration of older drives.
  • Browser-based and easy to use without installation.

Examples

  • 2 IDE (PIO mode 4) converts to approximately 0.503030303 IDE (UDMA-66).
  • 4 IDE (PIO mode 4) converts to approximately 1.006060606 IDE (UDMA-66).

Common Use Cases

  • Configuring or diagnosing legacy IDE/ATA drives and BIOS/driver settings.
  • Benchmarking or comparing legacy storage device performance.
  • Ensuring compatibility in retro or embedded systems relying on legacy ATA modes.
  • Verifying maximum burst throughput for older PATA hard and optical drives.
  • Selecting appropriate transfer modes in legacy operating systems.

Tips & Best Practices

  • Use this conversion when configuring BIOS or drivers to optimize legacy device performance.
  • Compare device speeds carefully to choose suitable upgrade or compatibility options.
  • Remember that actual transfer rates may vary due to hardware and configuration factors.
  • Ensure cable quality and device support when using IDE (UDMA-66) transfer mode.

Limitations

  • Conversion reflects theoretical maximum throughput, not actual transfer speeds.
  • Hardware condition, cable quality, system setup, and drivers impact real performance.
  • IDE (PIO mode 4) and IDE (UDMA-66) differ in transfer protocols and cable needs.
  • Simple conversion does not guarantee compatibility across devices or systems.

Frequently Asked Questions

What is IDE (PIO mode 4)?
It is a CPU-controlled data transfer mode for ATA/IDE devices with a maximum theoretical throughput of about 16.7 MB/s, commonly used in older PCs.

What defines IDE (UDMA-66)?
IDE (UDMA-66) is a Parallel ATA transfer mode allowing a maximum theoretical raw data rate of 66.7 MB/s, requiring an 80-conductor PATA cable.

Why convert between IDE (PIO mode 4) and IDE (UDMA-66)?
Users convert to compare performance, configure device transfer modes, and ensure compatibility in legacy and embedded environments.

Key Terminology

IDE (PIO mode 4)
A CPU-driven ATA/IDE data transfer mode with direct timing control and a maximum throughput around 16.7 MB/s.
IDE (UDMA-66)
An Ultra DMA Parallel ATA transfer mode with a max theoretical speed of 66.7 MB/s, requiring an 80-conductor cable.
PATA
Parallel ATA, a legacy interface standard for connecting storage devices like IDE hard drives.

Quick Knowledge Check

Which transfer mode uses CPU-controlled timing?
What is the maximum theoretical throughput of IDE (UDMA-66)?
Why must IDE (UDMA-66) use an 80-conductor cable?

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