diff --git a/Transceiver-Comparison.md b/Transceiver-Comparison.md
index 0a96605..e1da6a4 100644
--- a/Transceiver-Comparison.md
+++ b/Transceiver-Comparison.md
@@ -6,7 +6,9 @@ The original RaSCSI uses the [SN74LS641](https://www.ti.com/lit/ds/symlink/sn74l
 | RaSCSI Original Version | [SN74LS641-1](https://www.mouser.com/ProductDetail/Texas-Instruments/SN74LS641-1DW?qs=SL3LIuy2dWxXHvPKLk%252BfLw%3D%3D) | 3.30 |  4 |  VCC is 5v |
 | [Scuznet](https://github.com/saybur/scuznet) | [SN74LVTH126DR](https://www.mouser.com/ProductDetail/Texas-Instruments/SN74LVTH126DR/?qs=sGAEpiMZZMtYFXwiBRPs0%252b5WI0cyeyLc) |  0.64 |  4 |  - | 
 | Scsi2SD - According to [LC-SCSI](https://github.com/pgodwin/LC-SCSI/wiki) | [SN74LVT245B](https://www.mouser.com/ProductDetail/Texas-Instruments/SN74LVT245BPWR?qs=afYny40WCj1v38f4br9Q%2Fg%3D%3D), [Data Sheet](https://www.ti.com/lit/ds/symlink/sn74lvt245b.pdf) |  0.90 |  4 |  VCC is 3.3v | 
-| Potential Alternative | [74AHC245](https://datasheet.lcsc.com/szlcsc/Nexperia-74AHCT245PW-118_C173388.pdf) |  [0.22](https://lcsc.com/product-detail/74-Series_Nexperia-74AHCT245PW-118_C173388.html) |  4 |  VCC is 5v | 
+| Unsuitable | [74AHC245](https://datasheet.lcsc.com/szlcsc/Nexperia-74AHCT245PW-118_C173388.pdf) |  [0.22](https://lcsc.com/product-detail/74-Series_Nexperia-74AHCT245PW-118_C173388.html) |  4 |  VCC is 5v. Datasheet reads input clamping current -20mA | 
+| Unsuitable | [SN74LS245DW](https://www.ti.com/lit/ds/symlink/sn74ls245.pdf?HQS=TI-null-null-mousermode-df-pf-null-wwe&ts=1599280883179&ref_url=https%253A%252F%252Fwww.mouser.ca%252F) | 1.34| 4 | Can only sink 24mA, SCSI protocol requires 48mA |
+| Unsuitable| [SN7406DRG4](https://www.ti.com/lit/ds/symlink/sn7406.pdf?HQS=TI-null-null-digikeymode-df-pf-null-wwe&ts=1599282149626)| price | 4 | Can only sink 40mA |
 
 Note: as of 2020-08-04 the **SN74LS641-1** is the transciever suggested when building the RaSCSI.